Dotsie the sign sounds brilliant.Then even if he asks again you could say Yes I keep strict bounderies.
Could you get a male family member or friend to say that you keep a no canvassing etc policy and politly tell the man not to call.You need not give any reasons.
Most of the problems I encounter have been about personal bounderies..
Today an aquaintance asked me how I was after my hospital op.She knew from my absence at church.I said I was recovering well.She then ask what was it I had done...that her friend who was a pharmacist would be interested.(I have never met this friend who was waiting in her car)The fct I was in the womens' hospital tells it was "down below"but no this woman wanted details..She did however ask me to lunch.I just cant wait girls!!!
Mountain ash