I remember last year, around early january (resolutioners) and this guy I had never seen in there before, is doing a deadlift with 3 or 4 plates on a side...I was a good 25-30 ft away,,,and I swear to God I heard what sounded like breaking a bunch of celery,,,the guy doing deadlift popped his back...and he's yelling and moaning on the floor on his side. Again asked the guy behind the desk later that night what happened,,,,he told me he herniated 3 disks and reinjured a fractured vertabrae...it was the sickest sound I have ever heard.