Taking Turns

Scene: My checkout line at the supermarket.

Me: Paper or plastic?

Customer: I’d like double-bagged paper, and I’d like you to make each bag as heavy as possible.

Me: Okay.

Customer: In case you’re wondering, I had a fight with my wife, and it’s my turn to pick up the groceries.

Me: Uh-huh.

Customer: It’s also her turn to unload the car.