Character Sanity Index

I was reading over some Shakespearean tragedies, and noticed that it's pretty obvious to the audience, and not to any of the characters, just how homicidally nuts the main characters get. I suggest a something like a stock ticker that a secondary character can check during the play so as to avoid angering the main character and getting cacked in the final scene. "Whoa, Dad's hubris is up 2 points," thinks Goneril (King Lear). "Maybe I'll wait on kicking his troops out of my castle." Could make for some very short, uneventful plays, but would significantly reduce the body count.