Oh, I also can't stand the couples that workout together...going to the gym together is lame enough but actually working out together?
I also hate when I am in the middle of a sweet song and for some reason Pandora stops working.
I also hate it when the hot girl I have been "stalking" at the gym leaves at the wrong time...by that I mean...she leaves when I am still doing a lift...so that I can't "conveniently" leave at the same time she is walking out the door. I mean, I hate cutting my workout short just so I can run to the exit and say something witty as we are both leaving, like "Man, the manager at the gym said they have to charge me more because I lift so much weight"