But tie him up first.

Nah, that wouldn't work with our Australian Crocodiles since they have a much more evolved and discerning taste.
Far better imo, to throw him in a pool filled with starving Bull Sharks and Moray Eels, they will eat anything.

Fear and pain are GREAT motivators

My preference was always a couple hours in a locked room with a few parents and the parents are allowed to take a weapon du jour but no guns. Rusty barbed wire covered baseball bats come to mind.

@CuddyCruiser Especially IF that pain is being delivered by our Australian Bull Ants, they REALLY know how to bite and making it counts as well.
I once had the opportunity to watch as a nest of them attacked a 6' long King Brown snake.
Bull Ants are about an inch and half long with big heads relative to their body size, armed with very sharp pointed pincers (jaws) and they instinctively head straight for the eyes and the mouth first when attacking prey.
They attack in their thousands, not hundreds but THOUSANDS.

Hell yea the bros will have fun with his ass.