Salty is at it again, folks...

It is a morning like any other morning.  The cats have been racing all night, keeping their pets up in the process, and are now tired and ready to snooze the day away.  They climb the stairs like a herd of elephants and race into the bedroom.  There is a huge struggle as each tries to claim the best spot.  Finally they settle down and relax into restful slumber.  All at once we hear a yowl, growl, and hiss.  Seeking for the source, we step into the room, but all is quiet.  The cats are sleeping peacefully.  We step away, but the sound is repeated.  We step inside the room and wait.  What seems like an eternity later the sounds are repeated again, this time we see Salty jumping and jerking as he makes the noises.  We touch him in concern, he lifts his head and ……….