Most demons really don't like strong sunshine, so you might try jogging it around about twilight or around dusk. Also, they get lost easily in the dark. Put a glow in the dark collar on it. As for swimming, they do like water, but not holy water, so you should avoid ponds and lakes near churches or those that have large holes in them. For a change of pace you might try stringing your Demon on a kite so he can get enough fresh air into him. Hope this helps. I have no Demons, but I do have a small horde of vicious Dust Bunnies.