Customer: “Are you out of Shrek the Third?”

Me: “Yes, everything I have is out on the shelves.”

Customer: “Oh.”

(Customer goes back into rest of store, comes back to front.)

Customer: “There’s a copy out there that says ‘FOR SALE ONLY’.”

Me: “Mmhm, there sure is.”

Customer: “Can we rent that?”

Related:
On The Futility Of Signs