I have a couple of what probably should have been cold water moments, but weren't.
I'm our first flat the telephone and answer machine was in our bedroom - it was one of those where you could hear the message as the caller left it.
It was my birthday morning, the phone rang, but we didn't pick up as we were in bed and kind of busy, so the answer phone kicked in.
Long story short - It was the one and only time that my g/f was fisting me while my mum and brother sung 'happy birthday'.
Also, more recently, similar situation, but that time the soundtrack was a cat hacking up a hairball under the bed.
(Following Evict's post I feel like I should post more.