I once got cornered in a pub by a Russian prostitute by accident (Spoilers: No sex):
A few friends and I were due to go to the local pub for the evening for some drinks. I turned up first, got myself a drink and sat down at a table waiting for them to arrive. Get a text, one of them can't make it. Get another, he's had to cancel too. Final text, final friend isn't coming. So I'm sat there for a good half an hour, drinking on my own.
I look up, and see a young blonde woman at the next table over, waving at me with a smile, along with someone who was the spitting image of Niko Beliic next to her. I give a quick wave and half-smile back thinking she's just drunk and being over-friendly. They then come over to my table and ask if I minded them joining me. Seeing as my evening had just gone bust, I figured I might as well have a chat with them before I went home.
So, we get talking, I find out her name is Ludmilla and she's moved over here from Russia, and the guy (whose name I forget, so I'll just call him Niko as they're twins) is a "friend" of hers. I say "we" talked, Ludmilla and I chat, Niko just sits there watching us and giving a smirk whenever I glance at him. At this point, I was still oblivious to the situation because I'm both a social-idiot and a lightweight drinker.
After it's apparent myself and Ludmilla were getting on okay, Niko makes an excuse and says he's heading off and leaving us to it. He doesn't give a usual sort of "friends parting" goodbye, he just says that and goes. Ludmilla then goes on to say that yesterday was her birthday, which is why she was out drinking that night, and that as a birthday present she's had her flat redecorated. She then says that "Because I'm such a cool and interesting person" that she'd like for me to come back to her place and see what a good job had been done to it, and she touches me on the arm as she says so.
This is when the alarm-bells rang in my head. One, that's a fairly flimsy excuse to invite someone back with, secondly she called me "cool and interesting" and at that moment in time, unbeknownst to her, I had six separate decks of Magic:The Gathering cards in my shoulder-bag next to my seat. Nobody before or since has called me that. Thirdly; oh my god, that guy was her pimp.
Most normal people would have maybe politely walked away. I am stupidly socially awkward and partly-drunk at this point and I'm worrying that suddenly turning her down like that would be impolite, even rude perhaps. So whilst she went to freshen up and buy us some more drinks, I quickly phoned one of my friends who had cancelled and begged him to get there and provide enough of a distraction so that I could leave or she would.
Credit to him, he's managed to be walking in through the door just as she's coming back thanks to living just down the road, spots us and comes over to talk as though nothing was up. I greet him in much the same way, we have a little chat and I excuse myself to go to the men's room and then hide there for about ten minutes.
When I get back, Ludmilla has gone, leaving a very bemused friend and the rest of the evening coming out of my wallet as recompense for him abandoning a stay-in date-night with his girlfriend.
So yeah, that happpened.