He ain’t heavy, he’s my brother.
This is a very funny video of a small dog that was sent to go get the cat. In this case the cat is as big as the dog. This is one determined little doggy though, because he does as he was told and brings back the cat. He ducks his head under the cat and grabs its front leg, carrying it fireman style on his back. The funny part is that the cat seems to be used to this treatment.