Am I wrong for thinking of overdoing it when given menial work as a way of being spiteful?
You want to risk hurting yourself while dong menial work?
I'm getting treated like a piece of shit and they didn't even bother to listen to me.
It can be hard to feel unappreciated in a job no matter what work you are doing. Doing your job wrong or poorly is not the way to go about things.
I don't care. I think they deserve to have me do something wrong.
It would be best to express to your employer what you need in order to complete your job effectively. However, it's best to do your work completely and properly so that your employer can not use your work against you.