Customer: “How much is this? I’m kind of bad at math.”

Me: “Sure. It come to $10.20.”

(The customer hands me a $10 bill.)

Customer: “Here you go.”

Me: “Alright, I need at least 20 more cents.”

Customer: “Oh…alright.”

(The customer puts down five pennies.)

Customer: “Is that enough?”

Me: “15 more cents.”

(The customer puts down a dime.)

Me: “Alright you have $10.15 now.”

(The customer puts down 5 more pennies, but takes away the $10 bill.)

Me: “Alright, you have the right amount of change. But I need that $10 bill.”

Customer: “But this is 20!”

Me: “20 cents. And your total is $10.20.”

Customer: “Oh, I get it.”

(The customer hands me a $1 bill.)

Me: “I’ll need that $10 bill you had before.”

(The customer gives me the $10 bill and begins to take away the 20 cents.)

Me: “Wait…actually no you’re good. That’s the right amount.”