I used to work graveyard at a servo. Every morning between 530-545 the locked auto door would open and close. Then do the same thing a few minutes later. During my second week, on a really slow morning, an elderly woman walked in and we got to talking.

Her husband had passed away, and he used to come and collect the paper every morning before she got up at 6. That was when I started saying good morning every day. About a year later the door didn’t open/close one day. After a few days of nothing I found out that Ms D had passed away.