An elderly man knocked out a much younger man in mutual combat, a video posted to LiveLeak Thursday shows.

“I’m gonna hurt ya,” the older man warns his challenger before the fight.

And hurt him he did.

WATCH:

All it takes is one punch and the other dude is on the ground.

As the cameraman astutely observed, the challenger was in fact “knocked the f*** out.”

If there’s one thing I’ve learned from years of watching low-resolution street fights on the internet, it’s that old guys hit like Mack Trucks. This video is just further proof of that fact.

It makes sense when you think about it. Back when I was in Boy Scouts, they wouldn’t let us play dodgeball because it was too rough.

When this elderly gentleman was a teenager they probably had fights just for fun.

I know which generation I’d bet on in a fight, and it’s not my own.