...is a free bowl or burrito.
A few days ago I had lunch at chipotle and I either complimented the girl who was checking me out or I told her one of my terrible jokes. She asked me to wait, she ran into the kitchen and gave me this card. I asked her what it was for and she said "because we want to make sure you keep coming back to our restaurant." This is the second time I've gotten this card. The first time was about 3 years ago, but it happened pretty much the same way. I told a throwaway joke or gave the girl an innocuous compliment and she went and got a gift card.
Apparently these cards are somewhat rare, which I find a funny given the circumstances under which I got both cards.