I do think Runza did lose out on a little business with their previous promotion though. I went to a Runza in Lincoln post game and used one of my tickets, but told the cashier I wanted to keep it as a souvenir. She didn't mark it or do anything to it other then hand it back to me. The next day I used my other ticket stub in Hastings (I wanted to try and be honest) and to experiment with the idea. I said the same thing and the cashier didn't mark it either. Runza could have lost quite a bit of money if this is done elsewhere, and the tickets are not marked.
Just my two cents