The guy who can't get into the club
Stop trying to punch all of the bouncers, you're the one in sneakers and a T-shirt at a club that, at minimum, asks that you don't wear your lucky "Got Milf?" T-shirt.
The cocktail drinker at the club
The bartender has at least 100 drinks to make in the next hour. Heavy, thumping house music is coming through the speakers so loudly that anyone behind the bar is reduced to reading lips. If a drink has more than two ingredients, the orderer is a dick and has exponentially increased the wait for the next guy. Las Vegas has great cocktail bars. This place is not one of them, and doesn't claim to be. Order responsibly.
Anyone crying on the way out of the club
Sure, some serious, terrible, messed up stuff can happen in a club. But that's almost never why anyone is crying as they leave one. Put your heels back on and stop blubbering.