Looking tough is occasionally it’s own advantage. Allow me to share this useful anecdote:
A man was bothering a friend of mine (Not taking no for an answer) so I told him to stop. This man gave me a look like he was about to pound me. “What are you gonna do about it?”
Since I had a lit cigarette (I hold one while talking to my smoking friends so they don’t feel weird) I put it out with my tongue and showed no reaction to the sizzling sound it made (I’ve practiced this with matches so I don’t burn myself, just sounds like it). Then I placed the now OUT cigarette behind my ear and looked him straight in the eye.
He paled a bit, and walked away. Good thing too, he would have kicked my ass.