Displaying Your Stupidity

(I work as a food stand attendant. The day has been a hot one, so we’ve been selling out of drinks. We offer two kinds of bottled water but are currently out of [Cheaper Brand], so I’ve taken it off the drink display. However, it’s still on the sign that indicates prices. The next guest in line steps up.)

Guest: “I’d like a bottle of water.”

(Keep in mind that everyone else before her has been buying the remaining brand of water the whole time, so I just assume that this is what she wants.)

Me: “Sure, it’ll be four dollars.”

Guest: *irritated* “But it says three dollars on your sign.”

Me: “Oh, I’m sorry, ma’am. That’s actually the price for [Cheaper Brand], which we ran out of. Right now we only have the four dollar bottle.”

Guest: “Well, how was I supposed to know that you were out of it if you didn’t have it on display?!”

Me: *speechless for a second* “Um… so you want me to put it on display even though we don’t have it…?”

Guest: *seems to realize how illogical she sounded and stomps off without her drink*