I tend to work the twilight hours and have a lot of calls after midnight. I do take bookings after midnight if I am in the mood. The majority of my late night bookings are men that are shift workers or men driving back up to Herts or other areas North of London after working in London during the day. However, it also brings out the freaks.
I have had trouble with some men who are subpar in character though, especially as my work flat is not in the most salubrious of postcodes. Roadmen, trappers, chancers, cokeheads, gamblers - they all seem to want moonlight meets. Screening is ever so important. I have been assaulted, robbed and had more than a hairy scary situation entertaining after midnight, but all in all, its a risk I chose to take to suit my working hours and availability as I'm a night owl.