I’ll go first. Mine is the instant knockout drug. Like Dexter’s intramuscular injection that causes someone to immediately lose consciousness. Or in the movie Split where there’s the aerosol spray in your face that makes you instantly unconscious. Or pretty much any time someone uses chloroform.
Idiotic, yeah, but at least it’s more thought out than “because fuck you, that’s why” which is all we get a lot of the time.
I would prefer an honest fuck you then an idea that doesn’t actually make sense and is pretty obviously flawed.
That’s not the taking into account hours much effort it took to pull off