#3 James McSweeney and Zak Jensen fight in the TUF house
At TUF 10, veteran fighter James McSweeney decided to pull a prank on Zak Jensen by using a drawer to block the bathroom door while Jensen was inside. Jensen was of course royally pissed.
https://youtu.be/Nzlp_MYzJM4?t=43
After he broke free, Jensen went straight at McSweeney and wanted to rumble. But McSweeney caught Jensen in a standing guillotine and put him in his place. Still fun to watch though.
#2 Chael Sonnen throws down with Wanderlei Silva
Two of the biggest trash talkers in the game, Chael Sonnen and Wanderlei Silva went to blows on TUF Brazil in 2014.
In all honesty, the two guys have sort of a weird love-hate relationship. At one time, they were really cool with each other. But the UFC sometimes forces storylines and makes “scripts”. However, when Wandy didn’t stick to script at TUF Brazil and went after Sonnen, all hell broke lose.
The two were scheduled to fight, but due to failed drug tests on Sonnen’s part. And evaded drug tests on Wandy’s part, the fight never came to fruition. The two are finally going to meet inside the cage this June at Bellator 180
#1 Chris Leben goes ballistic on TUF 1
Chris Leben is the original TUF bad boy and a contestant on the very first season of the Ultimate Fighter. The guy had a mean streak, and it was really fun to watch.

After Bobby Southworth calls Leben a fatherless bastard. Josh Koscheck and Southworth proceed to spray a drunk Leben with a water hose which set Leben off.
The wild redhead broke the glass on the front door and proceeded to punch a hole in Forrest Griffin’s door, knocking it down in the process. It was absolutely insane.