Some Christmas selections from the psychiatric profession: 
  
 SCHIZOPHRENIA: 
 Do you Hear What I Hear? 
       
 MULTIPLE PERSONALITY DISORDER: 
 We Three Queens Disoriented Are 
       
 DEMENTIA: 
 I'll Be Home for Christmas...Where Do I Live? 
       
 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...WE NEED MORE HOLLY!!!! 
  
 PARANOID: 
 Santa Claus is Coming to Get Me. 
       
 PERSONALITY DISORDER: 
 You Better Watch Out, I'm Gonna Cry, I'm Gonna Pout, Maybe I'll
 Tell You Why (But if You Loved Me You Would Know Already). 
       
 DEPRESSION: 
 Silent Anhedonia, Holy Anhedonia, All is Flat, All is Lonely. 
       
 OBSESSIVE-COMPULSIVE DISORDER: 
 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, 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, 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............(better start again) 
       
 PASSIVE-AGGRESSIVE PERSONALITY: 
 On the First Day of Christmas My True Love Gave to Me 
 (and then  took it all away)