Once I got into an apartment with someone over a parking space (don’t. I was young and dumb) and they shoved, I grabbed their collar, they punched me in the face.
I was in sever chronic pain, and used to get hit a lot so it wasn’t a big deal. So I just looked at them like 😒 and they turned green.
Well, it also turned out that they broke my jaw. I didn’t notice until it had healed, but maybe they noticed and freaked out. I think they may have cracked my hard palate…
Anyway, if you wanna intimidate someone who’s been violent, don’t act tough. Just act like “The hell…?!” and stare.