Who gave him that?

The other day I was holding Tannen and I looked down and he was sucking on a marshmallow. I got on the boys case and asked which one gave him the marshmallow and they all said "I didn't give it to him". There was a bag of marshmallows on the desk and apparently he had grabbed one for himself. He had marshmallow all over his face and shirt and of course his hands. He was really enjoying that marshmallow!! I got a picture of him but at that point I had cleaned him off some.