A bizarre incident at a Wal-Mart car repair shop left a Fort Worth, TX woman utterly perplexed.

Known only by her first name, Jessica found that after she had taken her car in for an oil change, a mechanic had scrawled Satanic symbols, including the "Mark of the Beast," on the bottom of her car.

The symbols were discovered by a mechanic at another Wal-Mart, who confirmed that the symbols were written in a blue sealant that is common to Wal-Mart repair shops.

Jessica mentioned that the mechanic she suspects of writing the symbols had a bit of an "attitude."

"Who does that?" Jessica told CBS Dallas-Fort Worth. "I mean, what if it's a curse?"