Once upon a time, I used to love to exercise. That was during high school and college, though, when I had hours of free time to pick and choose when to work out. Now that I am in the real world my time has been severely constrained and working out in an empty gym is not an option anymore. And while public gyms do have their benefits (nice equipment, lots of eye candy), they harbor several of my exercise pet peeves.
Cell phones: If you can't put down your cell phone for an hour or so, you don't need to be at the gym. Go home and quite hogging the equipment I have been waiting 20 minutes to use.
Huge bottles of water: Unless you're running a marathon, you don't need to drink a gallon of water in less than an hour. There are water fountains everywhere, so you won't die of dehydration.
Beach muscles: If your arms are bigger than your thighs, you're not well-muscled; you're a douche. There are these things called squats. You might try them sometime.
Groups: I understand that most people like to exercise with a partner (I don't). But this is a gym, not a social club. It doesn't take 15 minutes to do two sets of curls, so shut up and actually work out.
Maybe one of these days I will have the space available for a home gym. Until then, I will just have to deal with the idiots at the gym who claim to work out.