Fail!
 

Took my car to the dealership for an oil change today. The service rep came back like 10min later, gave me a slip and sent me on my way. As I drive away, the rusty gears in my head start turning and I realize I didn't pay. I looked at the slip that I signed and it was an inspection and nothing else. I take full responsibility for this. I would have went back, but I was running late for my game.