The best part about freedom of speech is the ability to tell whoever you want they're as soft as a bundle of wet tissue paper and twice as dull without fear of recompense.
"In Chaplinsky v. New Hampshire (1942), the Supreme Court held that speech is unprotected if it constitutes "fighting words". Fighting words, as defined by the Court, is speech that "tend[s] to incite an immediate breach of the peace" by provoking a fight, so long as it is a "personally abusive [word] which, when addressed to the ordinary citizen, is, as a matter of common knowledge, inherently likely to provoke a violent reaction". Additionally, such speech must be "directed to the person of the hearer" and is "thus likely to be seen as a 'direct personal insult'".
Along with fighting words, speech might be unprotected if it either intentionally, knowingly, or recklessly inflicts severe emotional distress."
http://en.wikipedia....ffensive_speech