I made a post some time ago about my grappling experience with young Gavin. I'll never be able to find it again so I'll briefly re-tell.
I started in the mount position and was trying to pound him. Through his use of little PP digs with bony fingers, knuckles, elbows, knees and various grabs and pinches he made short work of manouvering me off him.
It was quite thought provoking. One minute I'm thinking, "Hmmm, I'd better not go full power. I don't want to hurt the guy," to thinking, or rather screeching, "Eek, oww,wtf???, aaargh, SSSSSSHHHIIIII.........!
Great, great fun.
Surprisingly effective. Take any one of the points he used as a distraction technique and Roberts yer Fathers brother.