This is "Bear" the dog that loves to hang out at the school and has pretty much been dubbed the school mascot. Will is telling him that he is definitley NOT going to share his cupcake!
Here is Cassidy with Miss Gloria. It also happened to be her birthday today, so we sang to both of them.
You can just picture this.... It is Lund complaining that he never gets cupcakes at school because his birthday is in the summer. He is saying "Why meeeeeeeee!!"