There's another "one punch" vid on the 'net I wish I'd saved. It was taken by someone who just happened to be in the area with a camera (sorta like the Rodney King thing).
'Taxi driver parked at a curb witnessed a high school bully smacking a smaller teen around atop a small hill beside his cab. The bully had just strutted away from his "kill" and was headed DOWN that hill as the cabby started walking briskly UP the hill toward him. Just as the bully got abreast of the cabby, the cabby NAILED HIM flush in the face with a hard right. The bully's knees instantly hit the ground and the rest of him folded over backwards onto his heels like a soggy pup tent. He was out cold.
The vid ends as the cabby turns and starts to stroll back toward his cab. But, as I recall, his face (thankfully) was never actually seen on that vid or he'd pbly been arrested instead of given a medal.
'Still makes my day just thinking about that vid!