[goofball]

As an afterthought, for most of my life I was completely incapable of handling such a confrontation well. Even if I said something if he handled it at all wittily I literally wouldn't be able to think of things to say, it's like my brain would shutdown or something. Then I'm not sure why but I became better at engaging in those kinds of confrontations and being able to tell people exactly what I think exactly when I wanted to (like you considered at the end there) and I always ended up regretting it so I've switched back to being more passive.

Don't sweat the small stuff man, it's a few seconds in a taxi-line. Yes the guy's a douche but take comfort in the fact that he probably hates is life and doesn't have too many genuine friends. He's not worth stressing about.