They never bothered me. Worked the bar business for 3 years through university.
You see people at their worst when they're drunk. Assholes just become bigger assholes.
But I always saw it as my job to make them feel welcome, for them to have a good time, and help them out if they got too smashed. And laugh, and smile. I very rarely had any altercations (there were a couple I'm not proud of), and mostly, I was just the happy smiley guy who wanted to be your buddy at the door.
As a doorman, when you're nice to people, you get mad tips next time they come to the door. They think they know you, and they have an "in". So they feel they can tip you to bump the line. Which of course I let them do. I get the guy's lady a free coatcheck, so he looks like a player. I escort him and his lady to the bar if I'm inside the club, and flag down the bartender, so he gets his drinks first and looks like a player. And then because they "know" me, they act more humane in the club. I'm not faceless, and I know them. They act like people should (well, more so anyways).
Plus, if we didn't treat our customers well, there were tons of clubs in the district to go to. We'd be out of business, and I'd be stuck trying to find a way to feed myself and pay rent.
I just never got how service people couldn't treat customers nicely, even if they don't like them (you don't have to like them...it's a fleece job...you pretend to like them so they pay you money). You don't earn your money dealing with the nice people. The reason you get paid is because you have to deal with crummy people, and smile and laugh your way through it.
People like to feel like a big shot at the clubs. My job was to facilitate that fantasy world they lived in and help them play it up to their friends. In return, they never started trouble, stayed in the club a long time, felt they belonged, and mostly, bought a lot of drinks and brought a lot of friends along with them.