My phone is usually switched off by midnight, but I left it on last night. Someone called it three times between about 1 and 2.30am. I just ignored it. Went to bed at about 3.10, and a few minutes later he rang again.
I was so annoyed I answered - well spoken bloke, asking if I was still working. I gave him short shrift, and said 'What sort of person calls someone FOUR TIMES in the middle of the night?!' He apologised for bothering me quite sincerely...
It wouldn't perplex me so much but I'm a middle-aged woman living in the suburbs, not a party girl in the centre of a big city!