As I typed the last update:

Caleb crept into the garage and carried the barrel of animal crackers into the family room and somehow figured out how to get the lid off. Then had helped himself to a few handfuls. And that was the scene that I found him in when I finished. The funny thing is that I had to go.. to get the pizza out of the oven for dinner... I guess he was hungry and was going to do something about it.