Don’t know where he got it but the Derb over at NRO posted these, "Psychiatrists’ Christmas Carols For Every Diagnosis" Here’s a sample:
Schizoprenia — Do You Hear What I Hear?
Dementia — I Think I’ll Be Home For Christmas
Paranoid — Santa Claus Is Coming To Get Me
and my favorite:
Manic — Deck The Hall and Walls and House and Lawn and Streets and
Stores and Office and Town and Cars and Buses and Trucks and Trees and
Fire Hydrants and………
Check out the rest here.