The "human being" you are about to feast your eyes on is the sleaziest of all sleazes. Like an evil Marb 100-smoking chameleon of evil intentions and poor judgment.
Behold:

The black New Era hat on his head with orange insignia is indeed not that of the San Francisco Giants, but of the hated Doyers-- a travesty in all facets. It's obvious why this scumbag would wear our colors-- he's obviously jealous of how cool and awesome we all are. It is not clear however, if this sort of obscene behavior has taken place on our side of things.
Is there such a thing a Dodger Blue Giants hat with a white "SF" in the middle?? Could such a thing have a market? I shudder at the thought. I encourage everyone to give crap to anyone you see wearing these blasphemous hats, because an orange and black Dodgers hat is almost as bad as a blue and white Giants hat.
And McTeague's is a cool bar. Busch in a can and Lonestar? In SF? WIN.