diff --git a/Building/Building.c b/Building/Building.c
index 1136fe4..fe2e1d1 100644
--- a/Building/Building.c
+++ b/Building/Building.c
@@ -38,8 +38,9 @@ void parse_residents_Building(THIS(Building), char * file){
 	char * trash;
 	int i = 0;
 
-	if (f == NULL)
+	if (f == NULL) {
 		CRASH("File for residents does not exist");
+	}
 
 	while (getline(&line, &len, f) > 0) {
 		remove_end_char(line, '\n');
@@ -68,8 +69,9 @@ void parse_visitors_Building(THIS(Building), char * file){
 	char * line = NULL;
 	int i = 0;
 
-	if (f == NULL)
+	if (f == NULL) {
 		CRASH("File for visitors does not exist");
+	}
 
 	while (getline(&line, &len, f) > 0) {
 		remove_end_char(line, '\n');
@@ -131,9 +133,10 @@ int get_inside_elevator_Building(THIS(Building), int current_floor, Passenger pa
 	/* Make assumption that a waiting elevator is not full */
 	for (i=0; i<ELEVATOR_NB; i++){
 		if (this->elevators[i]->get_floor(this->elevators[i]) == current_floor &&
-			this->elevators[i]->get_state(this->elevators[i]) == waiting){
+			this->elevators[i]->get_state(this->elevators[i]) == WAITING){
 			/* pour faire taire le compilateur le temps que je revienne sur cette fonction */
-			printf("visiteur %s, de type %d\n", passenger.visitor->name, type);
+			if (type == VISITOR)
+				this->elevators[i]->add_passenger(this->elevators[i], passenger.visitor->get_id(passenger.visitor));
 			/* Il faut faire des trucs ici */
 			return i;
 		}
@@ -144,8 +147,8 @@ int get_inside_elevator_Building(THIS(Building), int current_floor, Passenger pa
 void go_to_floor_Building(THIS(Building), int origin, int destination, Passenger passenger, PASSENGER_TYPE type){
 	int elevator_number;
 
-	if (origin < 0 || origin >= FLOORS) CRASH("You are trying to start from a non existing floor\n");
-	if (destination < 0 || origin >= FLOORS) CRASH("You are trying to reach a non existing floor\n");
+	if (origin < 0 || origin >= FLOORS) {CRASH("You are trying to start from a non existing floor\n");}
+	if (destination < 0 || origin >= FLOORS) {CRASH("You are trying to reach a non existing floor\n");}
 
 	pthread_cond_wait(this->condition_floors[origin], this->mutex_get_inside_elevator);
 	elevator_number = this->get_inside_elevator(this, origin, passenger, type);
diff --git a/Elevator/Elevator.c b/Elevator/Elevator.c
index d6e8895..bdf40f9 100644
--- a/Elevator/Elevator.c
+++ b/Elevator/Elevator.c
@@ -27,6 +27,16 @@ void _free__Elevator(THIS(Elevator)){
 	free(this);
 }
 
+void add_passenger_Elevator(THIS(Elevator), int passenger_id){
+	pthread_mutex_lock(&this->mutex_passenger);
+	this->passenger_ids->insert_tail(this->passenger_ids, ((void *)&passenger_id), sizeof(int));
+	printf("Le passager avec l'id %d est entre dans l'ascenseur %s\nIl y a maintenant %d passagers\n",
+		   passenger_id, this->name, this->passenger_ids->get_size(this->passenger_ids));
+	if (this->passenger_ids->get_size(this->passenger_ids) >= MAX_ELEVATOR_CAPACITY)
+		this->set_state(this, SLEEPING);
+	pthread_mutex_unlock(&this->mutex_passenger);
+}
+
 int get_number_of_passengers_Elevator(THIS(Elevator)){
 	int num;
 	pthread_mutex_lock(&this->mutex_passenger);
@@ -40,7 +50,7 @@ int can_get_more_passengers_Elevator(THIS(Elevator)){
 }
 
 void repair_Elevator(THIS(Elevator)){
-	this->set_state(this, running);
+	this->set_state(this, RUNNING);
 }
 
 void *runnable_Elevator(void * void_this){
@@ -52,7 +62,7 @@ void *runnable_Elevator(void * void_this){
 
 Elevator *_init_Elevator(char * name){
 	Elevator * new_elevator = malloc_or_die(sizeof(Elevator));
-	new_elevator->state = waiting;
+	new_elevator->state = WAITING;
 	new_elevator->name = strdup(name);
 	new_elevator->passenger_ids = NEW(List);
 	pthread_mutex_init(&new_elevator->mutex_passenger, NULL);
@@ -63,6 +73,7 @@ Elevator *_init_Elevator(char * name){
 			 runnable,
 			 get_number_of_passengers,
 			 can_get_more_passengers,
+			 add_passenger,
 			 get_state,
 			 set_state,
 			 get_floor,
diff --git a/Elevator/Elevator.h b/Elevator/Elevator.h
index 2f670e8..d988ddc 100644
--- a/Elevator/Elevator.h
+++ b/Elevator/Elevator.h
@@ -9,9 +9,10 @@
 #include "../Objects.h"
 #include "../List/List.h"
 
-#define MAX_ELEVATOR_CAPACITY 10
+//#define MAX_ELEVATOR_CAPACITY 10
+#define MAX_ELEVATOR_CAPACITY 3
 
-typedef enum {running, waiting, sleeping, broken} ELEVATOR_STATE;
+typedef enum {RUNNING, WAITING, SLEEPING, BROKEN} ELEVATOR_STATE;
 
 typedef struct o_Elevator {
 	PRIVATE ELEVATOR_STATE state;
@@ -29,6 +30,7 @@ typedef struct o_Elevator {
 
 	SYNCHRONIZE PUBLIC void (*repair)(_THIS(Elevator));
 	SYNCHRONIZE PUBLIC int (*get_number_of_passengers)(_THIS(Elevator));
+	SYNCHRONIZE PUBLIC void (*add_passenger)(_THIS(Elevator), int passenger_id);
 	SYNCHRONIZE PUBLIC ELEVATOR_STATE (*get_state)(_THIS(Elevator));
 	SYNCHRONIZE PUBLIC int (*get_floor)(_THIS(Elevator));
 	SYNCHRONIZE PUBLIC int (*can_get_more_passengers)(_THIS(Elevator));
diff --git a/List/List.c b/List/List.c
index f042506..abc3175 100644
--- a/List/List.c
+++ b/List/List.c
@@ -7,6 +7,10 @@ GETTER(List, Element*, head)
 GETTER(List, Element*, tail)
 GETTER(List, int, size)
 
+void set_custom_free_List(THIS(List), void (*custom_free)(void *)){
+	this->custom_free = custom_free;
+}
+
 Element * get_element_List(THIS(List), int index){
 	Element * current = NULL;
 	int i;
@@ -31,7 +35,9 @@ Element * get_element_List(THIS(List), int index){
 				i--;
 			}
 		}
-	} else OUTSIDE_BOUNDS;
+	} else {
+		OUTSIDE_BOUNDS;
+	}
 	return  current;
 }
 
@@ -81,6 +87,8 @@ void clear_List(THIS(List)){
 void insert_tail_List(THIS(List), void * data, size_t data_size){
 	/* Create a new element */
 	Element *new_element = NEW(Element, data, data_size, this);
+	new_element->data_free = this->custom_free;
+
 	if (this->tail == NULL){
 		this->head = new_element;
 		this->tail = new_element;
@@ -94,6 +102,8 @@ void insert_tail_List(THIS(List), void * data, size_t data_size){
 void insert_head_List(THIS(List), void * data, size_t data_size){
 	/* Create a new element */
 	Element *new_element = NEW(Element, data, data_size, this);
+	new_element->data_free = this->custom_free;
+
 	if (this->head != NULL)
 		this->head->previous = new_element;
 	else
@@ -113,6 +123,8 @@ void insert_inside_List(THIS(List), void * data, size_t data_size, int index){
 		this->insert_tail(this, data, data_size);
 	else if (index < this->size){
 		new_element = NEW(Element, data, data_size, this);
+		new_element->data_free = this->custom_free;
+
 		old_element = this->get_element(this, index);
 
 		new_element->previous = old_element->previous;
@@ -139,6 +151,7 @@ List *_init_List(){
 	l->size = 0;
 	l->head = NULL;
 	l->tail = NULL;
+	l->custom_free = free;
 
 	LINK_ALL(List, l,
 			 get_head,
@@ -148,6 +161,7 @@ List *_init_List(){
 			 get_tail_data,
 			 get_element,
 			 get_element_data,
+			 set_custom_free,
 			 insert_inside,
 			 insert_tail,
 			 insert_head,
diff --git a/List/List.h b/List/List.h
index ff8847d..6af0f0d 100644
--- a/List/List.h
+++ b/List/List.h
@@ -17,6 +17,7 @@ struct o_List {
 	PRIVATE Element *head;
 	PRIVATE Element *tail;
 	PRIVATE int size;
+	PRIVATE void (*custom_free)(void *);
 
 	PUBLIC Element *(*get_head)(_THIS(List));
 	PUBLIC Element *(*get_tail)(_THIS(List));
@@ -29,6 +30,7 @@ struct o_List {
 
 	PUBLIC int (*get_size)(_THIS(List));
 
+	PUBLIC void (*set_custom_free)(_THIS(List), void (*custom_free)(void *));
 	PUBLIC void (*insert_inside)(_THIS(List), void * data, size_t data_size, int index);
 	PUBLIC void (*insert_tail)(_THIS(List), void * data, size_t data_size);
 	PUBLIC void (*insert_head)(_THIS(List), void * data, size_t data_size);
diff --git a/Objects.c b/Objects.c
index 4fd490a..3bb8b90 100644
--- a/Objects.c
+++ b/Objects.c
@@ -6,7 +6,8 @@
 
 void *malloc_or_die(size_t size){
 	void *ptr = malloc(size);
-	if (ptr == NULL)
-		perror("Error allocating object");
+	if (ptr == NULL){
+		CRASH("Error allocating object");
+	}
 	return ptr;
 }
diff --git a/Objects.h b/Objects.h
index 246e2a0..f9ca676 100644
--- a/Objects.h
+++ b/Objects.h
@@ -7,6 +7,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <signal.h>
 
 #define NEW(type, ...) _init_##type(__VA_ARGS__)
 #define GET_INSTANCE(type, ...) _get_instance_##type(__VA_ARGS__)
@@ -14,7 +15,7 @@
 #define DESTRUCTOR(type) void (*_free_)(struct o_##type *this)
 #define THIS(type) type *this
 #define _THIS(type) struct o_##type *this
-#define CRASH(message) perror(message)
+#define CRASH(message) perror(message); raise(SIGINT)
 
 #define SYNCHRONIZE
 #define PRIVATE
diff --git a/SharedData/SharedData.c b/SharedData/SharedData.c
index 2e98e86..6b911fa 100644
--- a/SharedData/SharedData.c
+++ b/SharedData/SharedData.c
@@ -35,8 +35,9 @@ void start_all_threads_SharedData(THIS(SharedData)){
 	List * visitors = NULL;
 
 	if (this->threads == NULL){
-		if (this->main_building == NULL)
+		if (this->main_building == NULL) {
 			CRASH("No building attached to SharedData and thus no thread can be created\n");
+		}
 		else {
 			residents = this->main_building->residents;
 			visitors = this->main_building->visitors;
diff --git a/Visitor/Visitor.c b/Visitor/Visitor.c
index c77c75a..56752c4 100644
--- a/Visitor/Visitor.c
+++ b/Visitor/Visitor.c
@@ -12,8 +12,12 @@ GETTER(Visitor, int, id);
 void * runnable_Visitor(void * void_this){
 	Visitor *this = (Visitor*) void_this;
 	SharedData * data = GET_INSTANCE(SharedData);
+	Passenger passenger;
+	passenger.visitor = this;
+
 	printf("Bonjour, je suis %s et je souhaite rendre visite a %s\n", this->name, this->contact_name);
-	printf("Bip, %s appel a l'interphone\n%s habite a l'etage %d\n", this->name, this->contact_name, data->use_call_box(data, this->contact_name));
+	printf("Bip, %s appel a l'interphone\n%s habite a l'etage %d\n", this->name, this->contact_name, (this->destination = data->use_call_box(data, this->contact_name)));
+	data->main_building->go_to_floor(data->main_building, this->position, this->destination, passenger, VISITOR);
 	return NULL;
 }
 
diff --git a/main.c b/main.c
index ce712f9..0872076 100644
--- a/main.c
+++ b/main.c
@@ -1,5 +1,4 @@
 #include <stdio.h>
-#include <signal.h>
 #include <unistd.h>
 
 #include "Objects.h"
@@ -18,6 +17,7 @@ void clean_exit(int error_code){
 int main() {
 	SharedData * shared_data = GET_INSTANCE(SharedData);
 
+	signal(SIGINT, clean_exit);
 	shared_data->set_main_building(shared_data, NEW(Building, "../residents.txt", "../visitors.txt"));
 	shared_data->start_all_threads(shared_data);
 	shared_data->wait_all_threads(shared_data);