Son yesterday I was finishing up a heavy back day everything was great,went to do my last set,I say down on the back machine reached up to grab the bar and WHAMMO-BOOM-OUCH-FUK @#$%%^&&^%$$%^&**(*(*((&^%$#$$ PEICE OF SHIT I pulled my lat muscle can you friggin beleive that.Omg I was reaching up and just a little shock type bite and I was done.