The boy demonstrates it in a scene from the play where he is beating the hands of a group of boys who are lined up to get punished. He orders a boy to hold up his hand and swats it, then orders him to hold up the other, swats it and then kicks the boy away pulling the next boy in place.
The 14 year old boy also talks about how when he and his younger brother and sister get home their father regularly orders them to lie on the floor (whether they have done anything or not) and ties them down with ropes while he beats them with his cane.
He says “My father has two canes, one for the house and one for the donkey!”