diff -u /usr/src/usr.bin/calendar/calendar.c ./calendar.c
--- /usr/src/usr.bin/calendar/calendar.c	2014-03-03 19:22:25.000000000 +0100
+++ ./calendar.c	2014-03-12 23:36:31.000000000 +0100
@@ -209,8 +209,10 @@
 			(void)setegid(pw->pw_gid);
 			(void)initgroups(pw->pw_name, pw->pw_gid);
 			(void)seteuid(pw->pw_uid);
-			if (!chdir(pw->pw_dir))
+			if (!chdir(pw->pw_dir)) {
 				cal();
+				remove_all_events();
+			}
 			(void)seteuid(0);
 		}
 	else
diff -u /usr/src/usr.bin/calendar/calendar.h ./calendar.h
--- /usr/src/usr.bin/calendar/calendar.h	2014-03-03 19:22:25.000000000 +0100
+++ ./calendar.h	2014-03-12 23:53:24.000000000 +0100
@@ -120,6 +120,7 @@
 struct event *event_add(int, int, int, char *, int, char *, char *);
 void	event_continue(struct event *events, char *txt);
 void	event_print_all(FILE *fp);
+
 struct event {
 	int	year;
 	int	month;
@@ -183,6 +184,8 @@
 extern int debug_remember;
 void	generatedates(struct tm *tp1, struct tm *tp2);
 void	dumpdates(void);
+void	remove_all_events(void);
+void	remove_eventlist(struct event **list);
 int	remember_ymd(int y, int m, int d);
 int	remember_yd(int y, int d, int *rm, int *rd);
 int	first_dayofweek_of_year(int y);
@@ -190,6 +193,7 @@
 int	walkthrough_dates(struct event **e);
 void	addtodate(struct event *e, int year, int month, int day);
 
+
 /* pom.c */
 #define	MAXMOONS	18
 void	pom(int year, double UTCoffset, int *fms, int *nms);
Common subdirectories: /usr/src/usr.bin/calendar/calendars and ./calendars
diff -u /usr/src/usr.bin/calendar/dates.c ./dates.c
--- /usr/src/usr.bin/calendar/dates.c	2014-02-19 00:43:47.000000000 +0100
+++ ./dates.c	2014-03-13 00:44:43.000000000 +0100
@@ -256,6 +256,45 @@
 	}
 }
 
+
+void
+remove_eventlist(struct event **head) 
+{
+	struct event *del;
+	del = *head;
+	while(del != NULL) {
+		*head = (*head)->next;  		
+		free(del);
+		del = *head;
+	}
+	free(*head);
+}
+
+
+void
+remove_all_events(void)
+{
+	struct cal_year *y;
+	struct cal_month *m;
+	struct cal_day *d;
+
+	y = hyear;
+	while (y != NULL) {
+		m = y->months;
+		while (m != NULL) {
+			d = m->days;
+			while (d != NULL) {
+				remove_eventlist(&d->events);
+				d->events = NULL;
+				d = d->nextday;
+			}
+			m = m->nextmonth;
+		}
+		y = y->nextyear;
+	}
+}
+
+
 int
 remember_ymd(int yy, int mm, int dd)
 {
@@ -368,6 +407,7 @@
         return (-1);
 }
 
+
 int
 walkthrough_dates(struct event **e)
 {
@@ -401,6 +441,7 @@
 		return (1);
 	}
 
+	y = NULL;
 	return (0);
 }