I'm plotting to serve my least favorite teacher deadly nightshade tea.
Why would you poison a teacher?
It's my revenge on his idiocy and lack of intelligence and everything he and the teachers like him is doing to young and eager, like myself, minds.
Not liking a teacher is no reason to poison them. You shouldn't poison or kill anyone.
It's just a plant. How much harm can it do?
Nightshade is deadly. It doesn't take that much to be fatal or cause an allergic reaction. If you dislike him you should be able to talk to him like an adult and work out your problems.