There's nothing Boomie enjoys more than a good roll in the grass, especially since he's been wearing his harness more. He can't roll around with the harness on, because of the handles, (His new nickname is "Suitcase" by the way), so when I take it off, the first thing he wants to do is roll around a little.
He was just rolling for joy and I was taking pictures. This one was just too funny because it looks like he's missing his head. Here's a good video from a couple of years ago of him rolling.