It was the rats;
the slithering scurrying rats whose scampering will never let me sleep;
the dæmon rats that race behind the padding in this room
and beckon me down to greater horrors than I have ever known;
the rats they can never hear;
the rats, the rats in the walls.
– H. P. Lovecraft
So Chris Muth gets dragged off to the psych ward to treat his “bizarre delusion,” because he hears a cat behind his wall that no one else can hear. Then they finally have to let him out – after his neighbours start complaining about that darn cat behind the wall. (CHT Gavin in a comment on Charles’ blog.)
I guess Straczynski is luckier than he knew.