I've been to a few (though, not very many times).
The one time I really threw myself into the mix was with this one female friend of mine. We started the night at this one, more popular bar, and the crowd was a younger one that night. We left within half an hour because the people we approached (and there were plenty) were quite rude to that female friend of mine. I can't really abide that nonsense, there's no need to be rude to someone, regardless of a "conflict of interests", so we headed over to the bear/leather bar next door. That was a lot more pleasant. The folks there weren't nearly as attractive, and it wasn't exactly my scene, but they were infinitely more enjoyable to be around (that female friend of mine ended up making several friends-- the damn faghag). In the end, I really hit it off with this one person I found attractive and things turned out well.
Anyway, if you don't feel comfortable in whatever setting you happen to find yourself in, do yourself a favour and leave.
The one time I really threw myself into the mix was with this one female friend of mine. We started the night at this one, more popular bar, and the crowd was a younger one that night. We left within half an hour because the people we approached (and there were plenty) were quite rude to that female friend of mine. I can't really abide that nonsense, there's no need to be rude to someone, regardless of a "conflict of interests", so we headed over to the bear/leather bar next door. That was a lot more pleasant. The folks there weren't nearly as attractive, and it wasn't exactly my scene, but they were infinitely more enjoyable to be around (that female friend of mine ended up making several friends-- the damn faghag). In the end, I really hit it off with this one person I found attractive and things turned out well.
Anyway, if you don't feel comfortable in whatever setting you happen to find yourself in, do yourself a favour and leave.