Tez, the nice thing about the belligerent violent ones is that they supply Teachable Moments for the students.
"Alright class, what did he do wrong?"
"Alright class, what did he do wrong?"
"He was talking when he should have been fighting. He telegraphed his punch and led with his right. He let his other hand drop."
"Anything else? Yes, Susie?"
"He didn'... uh he didn' tuck his head when he fell down."
"Very good, Susie! Now what lock am I using on him?"