We have a large metal canister that holds 20 lbs of dog food. I had just bought a new bag of dog food and poured it into the container. I did not put the lid on it, since Cooper and Otis needed to be fed dinner.
I left the kitchen for 10 seconds. When I came back, Otis has his head in the canister and was eating, as if it was a trough. I think Otis thought this was his lucky day, with an unlimited amount of kibble.