Good idea / bad idea

By Niche Eenhoorn (Inspired on the Animaniacs (c) Warner Bros)

Good idea: Fly with a broom.

Bad idea: Fly with a vacuum cleaner.

Good idea: Crucio someone.

Bad idea: Crucio yourself.

Good idea: Take a walk with Fang.

Bad idea: Take a walk with the giant squid.

Good idea: Offer a candy to Dumbledore.

Bad idea: Offer a candy to Fluffy.

Good idea: Go study for your exams with Hermione.

Bad idea: Go study for your exams with Peeves.