I'm a Doctor, Not a...

"I'm a doctor, not a bricklayer!" In the original iteration of Star Trek, Dr. McCoy always had an objection to being asked to do anything other than standard medical care. By the end of the show's three-year run, it had become his catchphrase, only varying by the occupation -or object- he was not.

He's not the only doctor who is not something else. The catchphrase was resurrected for later Star Trek series. By now, you'd think Federation recruiters would specify that medical personnel need to be flexible in their duties. The catchphrase was not limited to doctors, either, although that's what we recall most often, thanks to McCoy. Memory Alpha has a long list of instances in which the catchphrase, or something close to it, was used. (via Laughing Squid)