castration and cutting off one finger so that women who come into contact with the rapist
can be aware and take precautions.
death penalty is too severe for adult to adult rape.
but raping a child, that might qualify.
The middle finger, so that he can't even do the gesture

What precautions do they need to take if he's already castrated? They got nothing to worry about, unless he uses a strapon.

Or his mouth...