Schizophrenia: Do You Hear What I Hear?

Multiple Personality: We Three Queens Disoriented Are.

Dementia: I Think I'll Be Home For Christmas.

Narcissistic: Hark The Herald Angels Sing (About Me)

Mania: Deck the Halls and Walls and House and Lawn and Streets and Stores and Office and Town or Deck the Halls and Spare No Expense!

Paranoia: Santa Claus is Coming To Get Me.

Personality Disorder: You Better Watch Out, I'm Gonna Cry, I'm Gonna Pout, then MAYBE I'll tell you why.

Obsessive Compulsive: Jingle Bell, Jingle Bell, Jingle Bell Rock, Jingle Bell, Jingle Bell, Jingle Bell Rock, Jingle Bell, Jingle Bell, Jingle Bell Rock, Jingle Bell, Jingle Bell, Jingle Bell Rock, Jingle Bell, Jingle Bell, Jingle Bell Rock, Jingle Bell, Jingle Bell, Jingle Bell Rock, Jingle Bell, Jingle Bell, Jingle Bell Rock, Jingle Bell, Jingle Bell, Jingle Bell Rock, Jingle Bell...

Borderline Personality: Thoughts of Roasting in an Open Fire.

Passive Aggressive: On the First Day of Christmas My True Love Gave to Me (and then took it all away).