That is the best teaching method ever.

I had a teacher in the past who expected tantamount perfection, the challenge was accepted of course but oh when she was late, you could see the look on my classmates faces, there was so much joy. 

All that side BSing skills come in handy in life, I've had to pull it on my boss more times than once. I should whisper "Thank you Miss Ventura," just for the practice after all.