Marmaduke's neighbors notice that he installed a chimney in his doghouse, which allows them to finally figure out how cold their winter had been. Marmaduke also has a bucket, the significance of which eludes me.

Marmaduke is asleep on the floor, having binged until he passed out. His owner-man explains to a suit-wearing houseguest and his jowls that this is Marmaduke's version of photosynthesis.

Marmaduke is violently second-guessing the computer that navigates his owner-man's minivan.