I'm not quite sure where to file this video under.  Sure, "DUMBASSES" is a given, but what's the sports connection?  Swimming?  Diving?  Some new action sport?

Well, let's not worry our prety little heads about that too much.  Just sit back, relax, and enjoy a kid hitting his head on concrete.  It's not summer at the pool until someone goofs off and splits his head open.  I should know, I used to be a lifeguard at a public pool.  Forget what you see on Baywatch, you've gotta be hard to work at a public pool.  It's like babysitting the D-Day invasion.