I was punished for not doing enough school work by being forced out of my bed at 6:00 in the morning to go and dig up stumps in the backyard or to pick up a 40 to 120 lb Rock and carry it from one corner of the yard to the other corner of the yard where there was a pile of rocks, pick up a different rock out of that pile carry it to the third pile and then back and forth over and over and over until sundown
Nazi concentration camp guards used to torture prisoners by doing this to them. Many of those subjected to this committed suicide by running into the electric fences or charging the armed guards.