One thing that comes to mind is the representation of people with Tourettes Syndrome. Ask the average person what Tourettes is, and they will probably laugh and then tell you, perhaps with their own comic demonstration, that Tourettes is where you compulsively swear at people. That's what the media has done for Tourettes, because coprolalia is, of course, absolutely hilarious. I don't think I've ever seen a fictional character with non-coprolalia Tourettes. Soap operas are usually the ones to display "non-typical characters" and may do so under the guise of raising awareness but first and foremost... it is for ratings. Obviously.