Nothing Says Goal Like Free Fro Yo

I decided to treat myself to a Tasti D at lunch today. It was a glorious nearly summery day and I deserved a little something. I had two of those Buy 10 Get 1 Free punch cards from 2 different franchises but I couldn't figure out which one corresponded to the location I was in. I handed them both to the guy and tried to explain that I didn't know which one he should punch. I said they were from last year (totally true, by the way) so I knew they looked different than their new ones. He took both the cards and handed me a new one. Then I tried to pay, I thought they'd expired or something. When the cashier looked at me the server dude was all, "She's free! She's free! She's free!!!!"

Oh, cool. Thanks!