Nowhere To Go But Up

(I work at the main information desk in a bookstore that has four levels. When a customer asks for a book, we are supposed to direct them to the appropriate floor.)

Me: “Okay, we should have that title. It’ll be on the fourth floor.”

Customer: *looking confused* “What?”

Me: “The fourth floor. There’s another information desk up there if you need help finding the section.”

Customer: “So, how many floors should I go up?”

Me: “Um, three.”

Customer: “Okay. So it’s the fourth floor I’m looking for?”

Me: “Yes. It’s the highest floor we have, so just take the escalator up as far as you can.”

Customer: “What’s an escalator?!”