Went to reconcile my bank statement this morning and saw that a local Chinese food restaurant charged me $5 more than what I signed on the receipt. My original charge was $25. My bank got hit for $30. I tipped the delivery driver in cash, not on the charge slip. Of course, I've since shredded the receipt and have no record of my original charge.
I plan on calling them today, but I won't be ordering from them again.