Everyone is Ezra's family was destined to be overweight. It must be that you somehow subconsciously set your own self up in life to allow people to use your last name to mock you. Hence, every Brubbery, for at least as far back as mom had photographs, was blubbery, and Ezra was no exception. He was almost always the largest kid in his class, and is now probably tied with Carl Pudgebunny in receivings at the post office.
story bits and stuff