The case was in the 60s of the last century. A group of nuclear physicists from the closed research institute went to the Black Sea. Everyone is a doctor of science. We went to the shore, on the way to buy a few bottles of vinegar with such a plastic cap that you need to cut with a knife. They come to the beach, they’re ready, and they’re crazy! And the bottles to open nothing... They see a sleeping man in the vicinity, asking, “Sir, and you can’t find anything to open the bottle?” How not to open! Do you have fireworks? He unwittingly stretches the box. The man turns on a fireplace, heats the traffic jamming and breaks it down, already softened, with the words: “Physics needs to be known!” With a group of recreators there was a shaped hysteria, and the man for science was awarded one of the bottles.