I do know how easy it was. The average martial artist would take down the average bar retard in minutes. Roger is a world class athlete along with knowing the martial arts. I've seen him destroy other professionals. Now if this dude needs serious medical it's another thing, becuase Roger knew the clown didn't stand a chance.
When I was bartending I saw a washed up 40'ish year old ex pro middle weight boxer light up about three 20 somethings looking for trouble right in front of me.
I once watched and old punch drunk ex boxer knock out an Olympic class karate guy -- right next to me at a bar. If I had blinked, I would have missed the 'fight'
The karate guy had class. He got up afterward, brushed himself off, and recognized he was an ass as well as the loser.
so what? being an expert has it's dangers