to have a printed police notice o n the front door which clearly and politey says 'sorry, no cold callers', what part of that do people not understand? a couple ot times recently i've had salesmen try their luck until i've said 'no thanks and pointed to the notice, " i presume you can read" and the best one was testerday when a chap asked me if i wanted double glazing, he caught me on the hop as i was opening the door for my kids friends, the problem with his question was that it is obvious that we have double glazing, so that was some what worrying! incidently can't really ignore the door knocker as the kids are alway having their mates round.