I like to smoke my pipe and commune with one or more of my three cats at the same time. They enjoy watching me light my pipe and they don't bat at it in my mouth or hand, and don't knock it around when it is on my desk. Sometimes one will carefully study the smoke as it rises. I am especially careful not to puff the smoke around their heads, since I enjoy having both the cats and the pipe together. They don't sneeze or shy away, so I try to keep it a pleasant association. I've had some fun getting cats to chase soap bubbles, but they don't seem to go after smoke; they see it is not a solid.