Yeah, I mean if you're evil, why would you voluntarily try to get your body stolen from you by tadpoles? Evil would be stealing souls, not lobotomizing yourself. Like anyone giving this even a second of a thought sees that we have ''Homer Simpson shoving crayons up his nose'' dynamic here. It's fun as in ''haha that's ridiculous, after this I'll eat some glass and bathe in acid'', not fun as in makes sense narratively.