Read this post, funniest thing EVER
Customer2: Hello! Instead of making the five steps needed to close the distance to a respectable one, I'm going to shout across the store and hope you realize I'm talking to you.
Me: I'm sorry, with the number of people in the store, I didn't come to that conclusion.
Customer2: Behold, I yell again!
From shigeo in this post about game store customers.