Extreme Seesaw

This video is labeled "David and Steph Teeterboard training," so I guess we can assume that Steph is short for Stephan or Stephen, although I don't know which is which. I watched and kept expecting one of them to hit the ceiling. It would be so easy for something to go wrong here! Kids, don't try this at home, only in a gym after years of practice and proper training. And this is the first instance I've seen in which a portrait orientation on a phone video is altogether appropriate. (via Viral Viral Videos)