When wewe look at nyota Trek as a whole, wewe begin to see that many of our inayopendelewa characters say the same things in many episodes and movies, often adding (in my opinion) a strong element of comedy. I've searched for some of these "common threads" and discovered two lists of funny nukuu from McCoy.

Dr. McCoy (Bones) about being a doctor:
I'm a doctor, not a bricklayer. Devil in the Dark
I'm a doctor, not a psychiatrist. City on the Edge of Forever
I'm a doctor, not a mechanic. Doomsday Machine
I'm a doctor, not an escalator. Friday's Child
I'm a doctor, not an engineer. Mirror, Mirror
I'm a...