KOMO News recently reported a 19-year-old waitress in Bellevue WA, is suspected of stealing over $4,000 from customers by adding additional numbers to the credit card receipt after it's been signed!

She just scratched out the number, initialed it and put other numbers in their place, giving herself HEFTY TIPS!

Experts say the best way to ensure this doesn't happen to you is to check your credit card statements and keep receipts.