(Customer has been browsing their pictures for a few minutes and I’ve been working on other orders.)

Customer: “Hey!”

(The customer taps envelope on the counter obnoxiously to get my attention.)

Me: “Yes sir?”

Customer: “You ruined my pictures!” *throws pictures on the
counter*

Me: “Sir, they look fine to me.”

Customer: “You put your fingers in my pictures!”

Me: “That’s impossible sir, there’s no way my fingers could be in your pictures.”

Customer: “They stuck them in the way when you were printing them.”

Me: “No sir, the way our machine works that just can’t happen. The only way there could be fingers in the pictures is if whoever was taking the picture accidentally let their fingers get in the shot.”

Customer: “Well, I’m a professional and I took all these pictures so I know it wasn’t me. It has to be your fingers!”

Me: “Sir, was I there when you took your pictures?”

Customer: *looks annoyed and confused* “No…”

Me: “They’re not my fingers then.”

(This continued for another 15 minutes, with the customer complaining about our machine being out of focus and a mystery line that very obviously resembled a camera strap.)