Yes, you are a teacher.
Yes, you teach lessons to students.
Yes, you can scold them.
Yes, you can shout at them.
Yes, you can terrorize them with your loud voice.
Yes, you can insult them if they are learning slow.
Yes, you can punish them whenever you want.
Yes, you'll be proud when they learn because of your monstrous ways.
AND
YES. You will FOREVER be remembered as a 
NO QUALITY TERROR PROFESSOR.
or worst,
YOU'LL NEVER EVER BE REMEMBERED.