A colleague for something carefully grounded the oscillograph and used to look at the chain, where the general wire was under tension relative to the ground... The muscles when passing through the current reduce the seizure, he cramped his jaw for some reason, he pressed out (in fact, not knocked out) eight teeth.

A month later, I had a TB exam. He learned the whole Talmud by the mouth until the last fifth, but at the exam he was asked the only question:

Wouldn’t you go under stage anymore?