Kibble and Bits

I got a call from our babysitter today to inform me that Colin was eating Monster's dog food. She said Colin was coughing, and she was nervous that he was choking on the kibble. So I asked her if she could get it out of his mouth with her finger. She then swiped a chunk of kibble out from Colin's cheek and said, "Yep, definitely smells like dog food."

I could hear him crying in protest in the background. Evidently, he was enjoying the dog food. I'm SO puzzled, he doesn't like green beans but he'll eat DOG FOOD?!? Does that mean he's still a picky eater? Or not?