well I work at a skatepark and theres a game center next door that my boss also owns....so we are opening a indoor paintball field next door where a lazer tag used to be...we had to move all the wood from the maze out, each sheet weighed 40 to 50lbs and had steel on the sides that bolted to the ground to stand up...well i was helpin the other 3 guys move them since there was so many...the people who moved the first stack or two didnt stack them right... so me and one of the other guys (lonnie) were holding the stack straight up so the other 2 guys (dave and Bo) straighted them up....well the stack of 18 boards w/ steel bars sliped out and fell with us behind it ( 18boards @ 40 to 50lbs a piece is around 720 to 900lbs) comletely fell on the one guy lonnie and since it was so much weight he couldnt breath and started to pass out..fell on my arms, got bos ankle, and sandwitched dave in the middle of them....i got my arms out and bo got his ankle out so we had to lift 2 stacks of 400lbs of boards off the other two guys....we think lonnie cracked ribs because of all the weight, and my arms are covered in raised bruizes on them.....yeah fun night....