I know that there are a lot of girls who can handle themselves, but my girlfriend isn't one of them. I love her to bits, she's my world, but her and I both realise that she's not great at knowing where to draw the line when drinking. The first time she went clubbing (before I was 18 ), she called me to tell me she'd drunk too much and was waiting for me outside some club to take her home. I went down there to get her, and a group of guys were trying to carry her to a car with one of them telling the bouncers it's his 'best mates girlfriend'. I fucking exploded when I saw it and they literally dropped her, got in the car and high tailed it. The bouncer they were talking to said "I don't give a fuck where she goes but if she's not out of here in 5 minutes i'm calling the cops." He was completely unfazed by the reality that he nearly just watched a girl get abducted.
Now she is more than happy to cop blame for that, admits she did something dumb, and learnt from it. She doesn't take any drugs, and simply isn't good at telling when the booze is hitting her and how hard until she gets floored. Ever since that night, she's only gone out with trusted male friends of ours that we know will keep her safe. I just can't go to any form of club (I live 150km away from the nearest one) as I get triggered manic in them and go off on some crazy bipolar induced night that I regret later.
My point is though, it does happen. This incident admittedly was in Kings Cross, Sydney which is fairly notorious for it's sketchy people, but i'm sure there are a LOT of places in America/England/Anywhere that are worse. These sort of scumfucks aren't the majority by any means, but there are predators in most inner city clubbing districts. To curb the female vibe of this thread, I have stories about my male friends as well, including one blanking out being led to a car to get a lift home and waking up 400km's away in a farmhouse, naked, with a 50 year old couple. He doesn't feel overly bad about it, remembers agreeing to go home with them and shit, but he does kind of consider it rape.