(The store is having a big sale on all dog costumes because it’s 10 days away from Halloween. You must have our rewards card, which is free, to get the sale price.)

Me: “Alright, do you have a rewards card? The costume is on sale today.”

Customer: “No, thank you.”

Me: “Are you sure? You could save a bit of money. It’s completely free to sign up.”

Customer: “I said no! God! You people!”

Me: *taken aback* “Alright. Your total is $16.99.”

Customer: *mumbles* “Stupid cards.”

(She takes her receipt and starts gathering her things as I ring up the next customer, who is also buying a costume.)

Me: “Alright, that’ll be $4.49.”

Customer: “Hey! Why is hers so cheap?!”

Next Customer: “Because I used the free card you rudely refused, after she tried to save you money.”

(I try not to laugh as the rude customer storms out of the store, leaving her pet’s costume at my register. My thanks to the next customer who said what I couldn’t!)