Yes, you get some very weird characters through from booking.com
My first one (back when I still took cash and went to let them in myself) was a guy who said he was staying with his girlfriend. When I turned up she was nowhere to be seen (he said she went to use the loo in a nearby bar). I had to go make him get an extra $50 off her (from the toilet?!?) but she still didn’t come back with him. When I went in to clean the next day, the bed had not been touched, nor the shower, but there was an empty bottle of whisky, a set of false eyelashes, and most disturbingly, a child’s sock. I switched to credit cards and key safes after that.