5. Pissed Off Teacher
This guy really blows his stack. Though in fairness, whistling can be annoying.

4. Angry teacher in Seoul
You have surely dreamed about doing this if you’ve taught in South Korea.

3. National anthem freak-out
This teacher may be a little too patriotic.

2. Mr. Jenkins gone mad
Mr. Jenkins doesn’t like when students talk back to him.

1. Angry teacher breaks mobile phone
You have to give this guy credit - he doesn’t miss a beat after smashing his students’ phone. Now that’s teaching!