Never underestimate the power of some good old-fashioned Brazilian jiu-jitsu, y'all. 

In this street fight, posted to @streetfight_ko's Instagram, we see what happens when one party knows his way around the ground and the other, well...Just watch.  

[instagram url="https://www.instagram.com/p/BR1XBYUB8Do/" hide_caption="0"]

After throwing hands for all of three seconds, our BJJ player scores a nice takedown and immediately transitions to north-south. When that doesn't pan out, he moves to side control, where he immediately traps his opponent's arm before leaping directly into mount. 

Demian Maia-esque, Joe. 

From there, some massive ground-and-pound shots follow, and the deed is done. 

But wait....There's more! 

In a gruesome shot to close the video, we see our dude on the receiving sustained some serious damage in the form of a floppy arm. Re-watching the tape, you can see the injury occurs during the initial takedown, as he attempted to catch himself awkwardly during the fall. 

All around, my man had a bad day, but I'm sure a local BJJ gym would be more than happy to take him in and show him the metaphorical ropes.