Teen boys

Teen boys do some crazy things...well, at least my teen boys and their friends do. For a couple years they like riding bikes. Not your normal bike riding but on ramps, hills, and such...jumping and doing tricks. Then they were into unicycles...also, not normal unicycle riding but again hopping up stairs and riding on ramps kinda unicycling. Now it is skateboards. Skateboard tricks on regular sized skateboards and also riding "long boards" down the road going as fast as they can possibly go then spinning around the corners. It is amazing we do not spend a lot of time in an ER...wait, knock wood on that one.