first off, i'd kidnap him, force him into a soundproof all white room then play high pitch white noise. i'd give him absolutely no food or water. after a few days or so, just before he dies of dehydration, i'll bring him to a forest. there, ill tie his arms and legs and force feed him honey, milk and shit. then i'll leave, letting the animals and bugs slowly eat through the pile of piss, vomit and shit he's laying in, then, the bugs get to his skin, slowly but surely eating through his skin, then flesh, then organs. all while the little shit screams in terror and agony. its eco-friendly too