Remember when Pinkerton ran off with treats that were supposed to be for everyone in the Mansion? Well, he obviously hasn't eaten all of them yet and has spied a few lying at the bottom of the broken wall of the grain bin.
Pinkerton should have eaten them the day he stole them because now he's
a whole lot bigger and fatter.
He'll never get those treats....might as well call in a few mice and they can eat them.....!!