Do you have any friends that always want to fight people?

I rab an old schoolmate of mine that I havent seen for 5 years. He is 24 now, but his is an alpha male. He is a UFC fighter, and always wants to start shit with people and start fights.

So being a cool guy that I am I offered to go out drinking and talk about old times. We went just went down to some bars, and he started trying to fight the bouncers who were my friends because they told him to tuck in his shirt..

We were at some other bar earlier and he was talking mad shit to everyone...I told him this time, lets find some girls, and not start any shit.. and he didnt even make it in the front door.. talking shit to the bouncers and cops.. so he didnt even get inside... but i did and drank a few with my other friends..

He is obviously fucked up in the head, he always says shit like, "if the cops come no one can prove anything".. he talks alot of shit and never throws the first blow so he can claim that he didnt start it.

This guy is the TOTAL opposite of me, im the kinda guy who is friends with EVERYONE and has 0 enemies..

He is the kind of guy who has 0 friends and always tries to claim people started shit with him and they disrespected him.

How do u deal with these people?