I agree Je.suis.
But I find it interesting, that for example so many brothers can knock on doors and build successful window cleaning rounds, but not knock on doors and make converts.
My point is by knocking on doors for a window cleaning round the intention is customers, and is therefore successful. I believe if the intention on the door to door work was converts, there are both brothers and sisters, with the personality, and skills to make converts if they really wanted to.
The Rebel.