S02E22: Free Inside!

Chicken finds a credit card as his ""free inside prize"". Dad tells him that with the credit card, he can buy all the neat stuff he wants. So Cow and Chicken run down to the weenie emporium, where he learns he can only buy products with the value of 25 cents or less. With that, he buys a stick of weenie bubblegum for 20 cents, then The Red Guy shows up to collect his 5 cent interest.