What Elf?

I didn't intend to join in the game, but I looked up and there he was sitting on my shelf...

He hasn't been naughty yet. Just sits there lighting the room up with his smile. I let him ride the dog. The quiet dog who eats little and doesn't mind sleeping on the floor. The dog who doesn't shed and barks quietly. The dog who hasn't yet peed on the floor,  chewed up my new boots, or chased the cat. I'm guessing they probably frolic about when I'm gone to work, but they're good about cleaning up after themselves because I never notice anything new out of place. And the "other" dog likely joins in the fun because it would be terribly difficult to resist. Dont'cha think?