my gym has 100lb plates and noone until yesterday cared about what you did. one new employee dicided to come up and ask me to stop deadlifting because i was going to break the bars....lmfao...there was 405 on the bar! after realizing she was retarted i went about deadlifting. she called the owner not knowing he is a friend of mine. she got fired! theres only a couple of rules at my gym...rach your weights, use a towel, and generally keep the place clean. other than that your good to go... oh they just got 180 lb dumbells in.