I haven't had a request for IE6 support in years, but if I got one I would say something like:
"No, I will not do IE6 support for you. You've trusted me to solve your problem in the best and most efficient way, and supporting IE6 would be a waste of your money (and my time)."
"No, I will not do IE6 support for you. You've trusted me to solve your problem in the best and most efficient way, and supporting IE6 would be a waste of your money (and my time)."