Is there anything more disappointing? Why yes, yes there is.
Buying a lottery ticket that you carry around in your wallet for a couple of weeks, then tossing it under the scanner to see if you won anything and having it flash the message "Contact Lottery Authority" instead of telling you "Sorry! No winner." the way it usually does. Just about hyperventilating when you find out there was a winning lottery ticket sold in the town where you bought yours for that drawing. Having visions of what $34,000,000 could do to change your life. And then having the Lottery Authority tell you "Oh, no, that's not a winning ticket. The machine couldn't read it, that was just an error message."
At least you know you'll get your shipment, sometime.