Fat black guy gets his ass kicked by a man nearly 80 years old. He's never going to live that down.
You apparently didn't watch the video, because the person who was hit was a skinny black dude. It was the guy behind him that was hefty.
And................have YOU ever been sucker punched? How about hit by an elbow (because elbows are more effective close up, as you can deliver more force)?
When you get sucker punched (and I have before), there is a short period of time where you are stunned and trying to figure out what happened.
Shit.................ANYONE can take down just about anyone else if you sucker punch them, because they don't see it coming and don't have any defenses up.