A century ago, I decided to travel by bus. A young family couple. The wife is obviously dissatisfied, and the evil looks at her husband. He tries to explain:
M: Listen, I’m not to blame that this thing broke in the car.
J: What kind of thing? (of course)
Yes, the wheel is turning.
What is noise?
M: What a shredder, this is a grenade.
G: equal angular speeds, fool
And he did not break in you, oh, he crushes only at the angle of acceleration, that is. Turn the wheel.

Nemo pause, the guy wiping out his eyes looks at the faithful

J: Yes, dear, before cooking you borsches, I worked as an engineer-constructor at the CB of mechanical engineering.

Chess and Mat