I want to punch this teacher at my son's school every time I see her
Why would you want to punch this teacher?
Her face always looks so rude and she is not doing a good job teaching the kids.
Whether you like your child's teacher or not, punching the teacher is a bad idea. You will only make the situation worse for your child if you go to extremes like this. You are better off getting into touch with the administration if you have any concerns.
Only a weak person talks to their enemy instead of punching him.
It isn't a good idea to punch people who you disagree with. You should learn how to control your temper before you get yourself into trouble.