Frequent Pain In The Ass comes in and buys a $1.00 back issue.
Me: That'll be a dollar.
FPITA: I have a discount card from the Brattle.
Me: That'll be ninety cents.
He hands me a credit card.
Me: No. Sorry. For less than a dollar you need cash.
FPITA stares at me..
Me: Because the amount we get charged per credit card transaction would mean that we are paying you to take this comic.
Which may or may not be true. It's probably close, though.
FPITA pulls out a dollar coin. Of course he has a dollar coin. I hand him a dime.
FPITA: Could I have a nickel and five pennies.
I pull out a pair of scissors and begin jabbing him in the eye, screaming NEVER. COME. BACK. NEVER. COME. BACK.
Or, actually, I hand him a nickel and five pennies, glaring at him until he leaves.