If You Can Be Impatiently Mean Then So Can I

I’m a cashier. An old woman is trying to figure out her phone’s store app to get her rewards points. This woman behind her keeps scoffing and whining. I turn to the impatient woman and ask:

Me: “Are you done yet?”

She gets a little huffy about it but shuts up. When it’s her turn, I don’t even ask if she has the rewards app. I just move her through in complete silence. She asks:

Impatient Customer: “What about my app?”

Me: “Did you want me to wait for you to pull it up?”

The realization of the irony made her leave.