If the store you are visiting is accepting counterfeit bills as payment from their customers you might be the lucky recipient of a brand new worthless piece of paper.

A woman used counterfeit $20 bills at Wal-Mart, Spencer Gifts and the Dolphin Inn before she was arrested Tuesday, according to the Okaloosa County Sheriff’s Office.

Tammy Lee Osborn, 19, of 10th Avenue in Shalimar, faces felony charges for uttering forged bills.

She told investigators her boyfriend and his friend had a scanner and printer they were using to print the money inside a room at the Dolphin Inn, her arrest report stated.

She used at least 40 of them, according to reports. Many had identical serial numbers and all failed tests under a counterfeit detection pen.

If the store you are shopping at doesn’t use counterfeit pens maybe we should all carry our own and check the change we get or insist that the stores use them.