At one stage in the late 1980's Sally, Philip and myself were all still living at home but going out late at weekends. To solve the problem of who was in last and so had to lock the door (we were'nt entrusted with keys in those days) there was a list put up in the lobby where you had to sign in with an arrival time, and the last one in had to lock up. One night I came home late and found the door locked. Not wanting to wake people up I tried the car door, it was open, so i fell asleep across the seats in the back. Only with the morning dawn chorus did i find Philip also asleep across the back seats of the car. Sally had got home first and then locked the door!