No Bucks/Hens nights was one of my rules as a pub bouncer. It's always trouble. It's mostly a group of friends out for a piss up and extremely bad behaviour at the expense of other patrons enjoyment.
If you're suspected of something and law enforcement can get a subpoena, you'll have to hand over the contents of your microsoft keylogger, actually microsoft will hand over your contents from their keylogger.
Smells like lamb/mutton, Source - The Ganges river.