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so I am going door to door yesterday and I come upon a house with a moss problem. I ask the gentleman if he would be interested in my service. He says yes He makes it clear he doesn't want to get up on his roof. I quote him a small price of 250 bucks, he says do it. I schedual him for the next day. I get a call about 30 minutes later its his wife and she wants to cancel the job. I say okay but can I ask why. she starts to inform me that Here friends tell her I do terrible work, I ask here who are your friends she has no answer, but to say 250 is just way to much to clean one small patch of moss. I then say mam If price is the issue just say that don't say I do terrible work cause I have only done about 10 roofs in this area and all of them are happy with my work, I personally no almost all of them. she says well well its the cost. I say fine mam if you would like I will come and treat that one small area that you see for 50 bucks. she agrees and I am doing it on saturday. My plan is to be nice. take some  pictures of the roof that is covered in moss that she can't see. treat the small area she can see. show her the pictures, then offer to treat the rest for my original price. might even lower it a bit.