A disease that is rare enough that only those who have it know how to write it or pronounce it. Try telling your doctor that you have it. Your doctor will either leave the room to look it up on his computer or will fake that he knows what it is and schedule you for a blood test.
Cop: "Why were you speeding, weaving, texting, applying mascara and eating while driving?"
Offender: "Was I really doing those things? I'm sorry. Antiphospholipid antibody syndrome made me do it"
Cop: "Please step out of the car, maam. and keep your hands in plain view."
Offender: " I'm sorry, officer, my Antiphospholipid antibody syndrome makes it hard for me to stand up. You can call my Doctor..."