I have a few things that annoy me in gyms.

- people that don't clean the machines after using them. Yes, you sweat too, but dont make others clean it up
- men grunting when they lift
- people (mostly men) that drop weights
- parents who let their kids run free after or before going into the child care area
- moms that bring their boys into the ladies locker room (a 6 year old can wait outside)
- perfume or cologne... Ick