Hate: Gym Lurkers
I hate when I'm running on a treadmill when someone comes in who wants to make sure they get to be the next one on the treadmill and they stand right behind me, stretching and staring at the back of my head. It ruins my run, and I'm not going to get off the treadmill as soon as I stop running—just because someone is lurking doesn't mean I'm going to skip my cool down and stretch.
Alternately, I hate people who take up the treadmills when they obviously aren't working out... if you're walking at a pace below 3.0 mph on a treadmill and it's not a warm up or cool down and you're on your cell while you walk, maybe you should let those of us who actually take the gym seriously work out. (this is pointed at one particular girl in my apartment complex. grr)
