I'm so angry I'm planning to bang on a man's head with sticks.
Bang on his head? Ow! That's not okay!
Yeah, I agree with you. It's not about right or wrong. It's about how to carry out something effectively.
Striking another person is considered a crime of battery. You should find a more creative way to get your point across to them.
It's fine, I'm angry at the moment. I just have to get my feelings out so they understand and I will cool down for a bit.
You can get express your feelings without physically harming another person. If you're feeling violent urges, you should get counseling for your anger. You can communicate more effectively using words instead of hurting people so they won't listen to you.