Dad's Milestone Of The Day

My 7yo and I just got back from having a slice of pizza for dinner while Mom works late. The place we went is very casual so they had the music cranked up pretty good. A groovy song with a good beat came on and I asked my daughter, who loves to dance, to show me some moves. She wouldn't, so I said, ok, I'll show you some of mine, then proceeded to bust a move (and a ligament, probably) right