It was like this in our village. I was 15 years old, my father sent me to the loft, to bring a toolbox from there, in a minute I go down in horror and say that there is a pebble size of a 12-liter hole. At what the father says that it is a frog, takes a stick, and with the words "I will drive them away", he puts on a coat and climbs up. After a while, he descends down, the shells are in place, the father has one shell twice as much as the other, and the back of the neck is shattered. I think I managed easily.