Crikey, your bro smacked you with a blunt side of a knife?

Never watched Full Metal Jacket? You put a bar of hard soap in a sock, or wrapped in a towel, someone holds the person's arms and legs, and put a sock in his mouth for good measures, then you get to see him, and look him right in the eyes while you're causing him an alarming amoutn of pain.
10/10 for pain
10/10 for effectiveness
10/10 for some god damned satisfaction.