or - when you take a cheese grater and start rubbing it over and over your tongue and then the blood starts to get all over your hands and the grater starts to slip and cut into your cheeks and nose. . . ooooo i hate it when that happens

Or when you take an iron and start massaging your tummy and the skin starts sticking to the surface of the iron and you can hear it crackle and see it rip... I really hate it when that happens.