A random homeless dude jerking off in the streets is not even in the same ballpark as someone getting raped in a bathroom, cmon. And it's not something you "sign up for", if you're not a piece of shit, you see someone in danger that you can maybe help, you try to help them. They aren't saying there's literally just a group of dudes sitting in a bathroom waiting for someone to try something, they're saying in a bathroom full of dudes, there's a pretty high chance if something does happen, they're not all going to just sit around or walk out.