An interesting film to watch on this (yes this is on subject) is Hopscotch with Walter Mattheau - Only one character habitually uses obscenities and he's the "bad guy". For all the other character's the use of swear words is clearly a choice made for effect.
quote: An individual that needs to resort to profanity and vulgarity is demonstrating that they have a fundamental lack of command of the English language.
is a good reminder that a character who is meant to have a good command of English probably won't need to resort to vulgarity to get their point across.
