"Hey, Anna," I said. "I heard you telling your friend on the phone that a customer yelled at you? Why?"
"Oh, she said I was bagging her groceries wrong, but I already knew to put the bread on top. Then she rolled her eyes at me."
[oh, sweet poetic justice!]
"How annoying!" I said.
"Oh, that's okay," Anna said, shrugging. "I just plopped a head of cabbage on top of her Cadbury eggs when she wasn't looking."
I'm so proud of her. Anna, abused retail workers everywhere salute you.