Every now and then, out of the blue, the cat launches himself across the room and onto someone's backside.
If you hear a scream coming from our home, it's probably, "YEEOWCH! There are 20 cat claws spread into new little holes in my back and bum at this moment and he's not letting go!"
It's the weirdest thing. It's like temporary cat insanity. He forgets for a minute that he's just a 20 pound housecat and for a moment thinks he's the lion chasing down a bit of prey in the jungle.
Then the spell is broken and he looks up at you with his perpetually surprised and innocent eyes.
TCI, temporary cat insanity.