"So if you walk in on a patient who's had a stroke, and they're grunting rhythmically, and they have automatic movements of their left arm, and they're unresponsive to noxious stimuli, what could be going on?"
"They're masturbating?"
"Sure. But it could also be nonconvulsive status epilepticus..."
(I hate walking in on people in nonconvulsive status. This has happened a few times, unfortunately, most recently today.)