There are two songs I refuse to sing no matter what; (In performance),Mooseturd Pie and The House next door to mine. (Was sold to niggers). That one I will not sing at all. I did sing the moose thing for Tom Paxton, but, he had to sing one for me at this party where almost anything went. C.H. one of my very best friends will not do requests because it throws him off his game. He wants to do the best possible job in a concert. I, however, am an entertainer, and, the audience are my friends. If they are reasonable, I will give them what they want, if I know and LIKE the song they request.It also has to fit the venue. For example, at a bluegrass festival, a lady wanted to hear "Green Broom" I thought it was totally out of place, so, I told her I would do it for her after the set. I never saw her again. I think I was being quite reasonable.