Some professor goes from "Cool Prof" to "Irate Teacher" during his lecture when he hears one of his students yawn too loudly. Apparently this noise pollution has been occurring during too many classes lately, and he's mad as hell and is not gonna take it any more. He threatens that his nasty side is just as bad as his nice side is nice. Hopefully that makes sense. Basically it's "Oh, you want to disrupt my class, Yawny McYawnerson Well, two can play this game! LOUD NOISES!!!"

Here's a video of the professor yelling at his entire class and instructing the offender to take his yawns outside so he'll stop being such a galdarn nuisance:

Was the professor's anti-yawn rant justified?