An OPTIMIST is a person who doesn't have all the facts.
A PESSIMIST is an optimist who does have all the facts.
A CYNIC is a pessimist who has seen the facts in action.
A PARANOID is a cynic who has FINALLY realized that the facts are after him.
"Get that god damn water out of my glass, asshole! Did it ever occur to you I might have left it empty for a REASON?! HUH?! GET OUT OF MY SIGHT, YOU WORTHLESS PIECE OF SHIT!!"