i took my kids to indoor bmx park and thought i show the kids how to drop in on 10 foot drop . never been on a bmx before or on a drop in i thought this can not be to hard as loads of little kids where doing it . a few seconds later i am flat on my back looking up at a flying bmx as it falls towards me just as it hit me in the face . a black eye , split lip and 3 weeks off with a bad back was not worth it . the kids thought it was the funniest thing they had seen in years and still like to remind me of it ever now and then