When my stepmom sticks her head into the oven to clean it, I'm going to make sure the gas is turned on.
Why would you do that?
Last time she cleaned an oven she broke it so it will look like an accident.
The gas could kill her. It's not okay to try and cause someone harm.
Oh, please.
I suggest if you have thoughts about harming your step-mom, you should remove yourself from the home. Maybe you can stay with your own mom and her husband.