I was just going over some receipts in my wallet from my trip- and two of them caught my eye... Both the receipt for "The Santa Fe Cafe" and a ski lift place had the whole credit card number, and experation date printed on the receipt. If anyone would have gotten ahold of that- they could purchase practicality ANYTHING they wanted at my expense.
What the hell are these places thinking? That's just nuts. Most receipts just have the last 4 digits and the card type- not all the vital info.