Facebook group We Love BJJ (Brazilian Jiu-Jitsu) posted a video of what at first looks like your typical school fight. A bully apparently starts picking on a (slightly) smaller kid. At first the kid doesn't seem to want to get involved, but he finally appeases the bully, takes off his backpack, and proceeds to kick the everloving shit out of his tormentor.
The video already has over 8 million views and 65,000 likes on Facebook. No information on who or where these kids are now, other than the bully, who is clearly in a world of hurt.
After being pummeled, the bully begs someone to get his former target off him, because he was worried dude was going to break his arm. Please, do not break people's arms. Then the MMA kid's friends all gather around and congratulate him on being the new coolest kid in school.
As commenters pointed out, since the kid was clearly a trained fighter, he managed to get his point across (DO. NOT. FUCK. WITH. ME.) without hurting the bully too much—unless you count his pride, which is gone baby gone.