He's so full of himself I can't help but laugh at him. Wherever he is, he walks around like he owns the place. He is quite built in his front end, so he manages quite the impressive swagger. He kind of (yes VERY loosely) reminds me of the Hector the Bulldog from the Sylvester and Tweety cartoons.
He swaggers around, that is, until a dog barks in the distance and he comes running to momma. Apparently distantly barking dogs are his kryptonite. Nearby barking is a-ok, but in the distance??? Ooooh, scary. That kind of ruins his macho image. He doesn't seem to care at this point but once all the other puppies start laughing at him, he'll be more brave!