[90. 9] Rectal-Cranial inversion (for musebysentence)
Convincing a guy who's only purpose in life is to memorize medical stuff that Rectal-Crainial Inversion is a real disease that a real detective you both know has been suffering probably since he was four, not only means hours of googling, but also hours of photoshoping, photocopying and glueing in medical encyclopedias.