did when we had him. Breath hard continuously with an open mouth, like you're tired and out of breath; do this in a house or closed in space. See what your cat do?! our cat started coming (as in crouching forward with slow to steady steps) at my mouth, focused on nothing but my breathing, it seemed. with my son watching, we didn't know what the hell was going on. i hurried up and stopped the breathing. tried it another time, same reaction by the cat. so i can see the tale having a tangential relevance, hmmm..