Cheeseburger is a fun-loving rambunctious little pup.
He absolutely loves everyone he meets and is too naive for his own good sometimes.
He's always eager to help and he's very loyal. A little too loyal...

He's a hybrid of a corgi and a shark. Two of my favorite animals.
And cheeseburger-colored. My favorite food.
So... yeah. It made sense in my head. :D