Bam Margera has pulled all kind of dangerous stunts while being on Jackass, but he seriously injured himself just playing around. Bam made a bet with his neighbor to see who could run up a set of stairs the fastest. If Bam lost, he was gonna have to give his neighbor one of the skateboards. While racing up the stairs, Bam tried to tackle his neighbor but ended up tumbling down the stairs himself. He had to go to the hospital and found out he broke four of his ribs. But he’s not taking any time to rest. According to his twitter, he was suppose to go to a Lil Wayne concert last night.

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