yes. one day while moving a goldeneye i was in a hurry to get home so i just didnt lift properly. gave myself a herniated disc, and through some miracle of anatomy this also forced me to pass a few kidney stones that were happily lurking inside of me. i spent about six hours in the hospital laying on my side with my dick in one of those medical receptacle thingys. every twenty or so minutes i would pee a little over 32 ounces and they ran tests on it till i was good to go. fuckin sucked, but i learned my lesson; always take the split second to make sure your lifting something the right way.