Direction-less Directions

So, my summer job: I'm working in a store on the Ocean City Boardwalk (East Coast. Remember that little piece of information. It's important.) Not too bad, now that senior "week" (actually lasting three hellish weeks) is over.

I'm on seventh street; closest public restroom is on ninth street. Week before last someone comes into the store, demands to use the bathroom. I tell her there's one two blocks north on ninth street. She rolls her eyes, huffs in exasperation, and says with a sneer, "Which way's north?"