If indeed this statement is true (Some people would consider Tar-baby a racist term.) then perhaps if this person knew it then it would be a kindness on his part not to use the phrase. I personally don't believe it is being politically correct to avoid using certain words or phrases when someones feelings may be hurt. But as I stated in the Manhole thread folks need to get a life when it comes to political correctness in general.

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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….