I once thought I won $10,000.00 in the powerball, but ended up with only $100.00. Seems that the dealer I used to processed my power ball picks, decided to change one of my numbers as it was showing an error on the card. Rather than ask me, he just entered what he thought it was. That one number cost me $9,900.00.
We won a huge gas barbecue in a scratch off - basically from time to time big department stores have tickets that get scratched off at the cashier. Some have 5%, 10%, 25%, 50% and there is usually one or two 100% off.
Anyway, my parents and I picked out this BBQ to buy regardless and when we got to the checkout, they gave us a card. It was 100% OFF so we got the bbq for FREE.