(1) Before we disabled the cat flap, the cat used to bring mice into the house at all hours, sometimes depositing them on the bed. One night I woke to find a mouse, for some reason, running laps up and down my body. (2) As I dozed on an airplane, an elderly gentleman standing in the toilet queue next to my seat suddenly collapsed - on top of me. When people - especially large men - faint, it's not delicate but more tonne-of-bricks. (3) The sound of a stealthy key in the front-door lock in the middle of the night. From a deep sleep, both DH and I were immediately wide awake. (4) A blood-curdling scream. Again, both DH and I were suddenly wide awake and in full fight-or-flight mode. And then another scream, and another... at which point we realised it was just someone in our building having sex. Unfortunately this woman, who was 'a screamer', sounded not like she was having fun but like she was being murdered. Woke us every time, no matter how much we tried to ignore it... until, one night after she'd started screaming, we heard someone in another apartment stick their head out into the courtyard and say loudly, 'You know, everyone can hear you...', and then slam their window shut. Silence... and then the screamer's window slammed shut too... and we were never bothered again.