I had a disaster last Saturday - I returned from London having had two bookings cancelled and was feeling low from being seriously out of pocket. A guy I have seen a couple of times rang wanting to book for 11pm which would normally be far too late for me but I took it as I was still feeling sore about the money I had lost over the last couple of days. He turned up with wine, having clearly had a drink and as I was ready for one myself, I indulged him - however, I couldn't get him to leave. It was past 4am by the time I got rid of him and got to bed - I didn't ring my security as it was so late and was frightened to make a fuss in case he decided to get stroppy and wake my neighbours up. Got rid of him eventually but he had nearly 4 hours off me for a one hour fee - and don't think I don't feel like a twat for not sending him on his way much earlier, but it's not always easy!
I have never before put restrictions on my working hours - I don't have anyone else living here who would be bothered, but am seriously intending to add to my website; I make more than enough working during the day and have no need of this! I have also found that the vast majority who ring me at silly o'clock are either drunk or coked, so I don't want to meet them anyway! IME, it is easy to make your money during 'office hours', and it also doesn't mean missing the decent telly.