Zeuhl, points taken about the charities and their "monitoring". I do hope they are monitoring this though because I am on the verge of cancelling my DD. I see no intrinsic value in mailshots to someone who already contributes, especially those that contain cheap crappy pens and raffle tickets. I now return them without paying the postage, and ask them not to send any more, yet they still do. This, to my mind, is a waste of any money I gave them. I thought the title "Cancer Research" wa a clue as to what my money would be going on. I also still abhor the excessive fees paid to directors of charities.
As for the pursuing chuggers, (and chugger is an apt name given it's slang connotations), I am referring to people who have already spoken to you and then continue to walk after you. One step is too many in that case.