Mason loves to play. He has invented his own game. It is obviously that enjoys swinging and he is pretty creative to have discovered how to do this. I have attempted to play tug with him, but he is not that interested in "just" tugging. While watching him swing, I realized it was more the swing than the tugging that he seems to enjoy. I have seen him hang on and use his hind legs to push off and start swinging again. He is a one of a kind.