We did once run a theme night at a local folk club, the theme being "Sing a song you hate/dislike". We had all sorts, deeply loved by some participants, who could not understand at all why the singer disliked them.
My choice (and forgive me if you think it's a wonderful song, and I know that it has a certain significance for many people) was "Tie a Yellow Ribbon round the old oak tree". Well outside my usual repertoire to sing, but I just find that bumpy bumpy rhythm, and trite little tune, for what after all was such a serious subject, makes a mockery of it all.