Schizophrenia --- Do You Hear What I Hear?  
  
Multiple Personality Disorder --- We Three Queens Disoriented are  
  
Dementia --- I Think I'll Be Home For Christmas  
  
Narcissistic --- Hark The Herald Angels Sing About Me  
  
Manic --- Deck The Halls and Walls and House and Lawn and  
Streets and Stores and Office and Town and Cars and Busses and Trucks and Trees and Fire Hydrants and......  
  
Paranoid --- Santa Claus Is Coming To Get Me  
  
Borderline Personality Disorder --- Thoughts Of Roasting On An  
Open Fire  
  
Personality Disorder --- You Better Watch Out, I'm Gonna Cry,  
I'm Gonna Pout, Maybe I'll Tell You Why (sounds like most women I know)  
  
Obsessive Compulsive Disorder ---Jingle Bells, Jingle Bells,  
Jingle Bells, Jingle Bells, Jingle Bells, Jingle Bells, Jingle  
Bells, Jingle Bells, Jingle Bells...