Until recently I was an Equality and Diversity Professional, and had a hole in my office wall from banging my head on it in frustration, so many people got hung up on language would sneer at E & D for being 'PC' and trot out all the old urban myths as an excuse for saying that E & D was stupid
I have yet to meet a black person offended by black coffee, black boards, or black sheep, a Muslim offended by christmas, or epiletic offended by brainstorming!
If, indeed some idiot thought they were helping equality by saying such stupid things , they should be put behind bars for damaging the credibilty of equality legislation
I was a member of EYTARN for some years , and we never found anyone who had actually sang baa baa green sheep - possibly in Nottingham they had no idea what sheep were? 
I had cause to take an elected member to a standards hearing due to her racist and vile attitudes, and from somewhere , out of my mouth popped the words ' we should all live our lives according to thumper's mother - if you havent got anything nice to say, then don't say nothing at all...'
Regrtably I cannot adhere myself to her high standards !