This guy here at work use his superior position to treat me with no respect. We don't have a """ boss """, so I don't know who's the one I should talk to.

Basically he treats me like I'm a subordinate; someone he can command respect and since I'm a " nice guy " ( * read the sidebar ), he's alwaya making malicious jokes and he makes me a laughing stock. He wants me to feel inadequate. Everytime I tried to react he didn't ask for an excuse, he's cocky and very confident.

I lift and I'm.bigger than him, of course he even makes fun for my vascularity too. I don't know what to do, change work could be an option.