remembering one of the stupidest conversations ever

Before I moved to NY (but after deciding to do so) I was in line at the drugstore when I heard the following conversation between the cashier and a guy wearing a "white castle hamburgers" t-shirt:

cashier: Cool shirt, man.
guy: Thanks. You know that movie Harold & Kumar go to White Castle? I bought this because of that.
cashier: Isn't it a fast food place or something?
guy: Yeah, but I've never eaten there. They're only in Southern California. (And since this was Davis, i.e. CENTRAL CALIFORNIA, I was shocked this guy had never travelled a few hundred miles south.)
me: Actually White Castle is a chain in New York. There's a city in New York called White Castle. It's from there. There are no White Castle burger joints in California.
blank stares.
me: Now can you please get out of my way so I can buy my things and not have to listen to your stupid conversation anymore?

I just felt like reminiscing that with you.