Funny Video - Dex "walking"

To set this up...Dex finally realized he could walk behind this walker we have.  BUT, it rolled too fast, so I had to crawl beside him and keep the walker from going 90 miles per hour and thus keep Dex from busting his face.  He thought it was the greatest thing he'd ever done, as you'll see.  And after the camera quit rolling, we went back and forth about 75 more times.  Or 80.  Probably 100...