In Reply To #1
As for funny, sadistic teachers, I still remember my 8th-9th grade Physics teacher. To say the truth, I sucked at Physics. It was shortly after I started learning REAL Physics in 10th grade that I realized it, after started failing one exam after another. But that was later, back in those days, we studied simple physics, and boy, did that teacher made it all more fun. We used to call him "the contented", because every time he had a good lesson, he would exclaim: "Very good. I am contented." His Hebrew wasn't the best, but at the level he knew it, he could make any point he liked. From what we knew, the guy used to live in a settlement, so he always carried a handgun with him. Why he was sadistic? Well, listen to the questions he made us solve.
"I am chasing an Arab with the speed of 6 km/h, the Arab is running away with a speed of 4 km/h. There are 5 km between us, and it is known that I must get at least 100 meters behind him so I could shoot him. How much time would it take me to get the Arab, and what would be the distance I cross until I get him?"
Then there were the stories from his childhood.
"Just to give you an idea what radiation is, me and my friend, back when we were students at Moscow, we decided to do an experiment. We caught a cat, climbed on top of a radio station, and threw him on top of the antenna. Some time later, we found the cat dead, but before dying, it lost all of its hair."
And I could not forget the cinematic reference.
"Hydraulic press is an unusually powerful tool. There was a movie, called terminator, in it was was a very strong robot, nothing could destroy him. But then in the end he was caught in hydraulic press and it smashed him."