Originally Posted by
tmiw
It's pretty easy for the police to figure out the cardholder's identity from the card number alone, so probably not a good idea on that person's part.
DC area Goodwill stores have FD130 terminals facing the customer. They allow you to key the amount yourself, but I doubt you'd get away with charging a penny to begin with as they take their copy of the charge slip and staple it to the merchant POS receipt.