Some of these people are really asking for it, provoking their cats as they do; and they get it, too. Reminds me of a friend of mine who had a not very friendly iguana. He taunted the great big lizard one day by sticking his tongue out at it, up close and personal–and got it practically bitten off, to the great amusement of his audience.
Don’t mess with cats. It doesn’t pay.