dear /fit/i have been greasing the groove doing pull up and chin ups on the sprinkler pipe outside my room. i have been informed that this is a bad idea because i might break it (3-4 inch diameter metal pipe) and much lulz would be had by the plumber.i need a good pull up bar i can mount above the door.opinions?http://www.amazon.com/Above-Door-Chin-up-Bar/dp/B001CB2OK0/ref=pd_sbs_sg_4
http://www.amazon.com/Iron-Gym-Total-Upper-Workout/dp/B001EJMS6K/ref=sr_1_3?ie=UTF8&s=sporting-goods&qid=1227505067&sr=1-3