This vid is pretty funny at first. The kid just keeps trying and trying, then in the end you'll go OUCH!...watch his rear leg on the slow mo'...I think he dislocated his knee, at the very least:
http://www.lookatentertainment.com/nneu231nd1zd823/vids/v-635.wmv
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http://www.lookatentertainment.com/nneu231nd1zd823/vids/v-635.wmv
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