My Mum is in her 80s and last week had someone at her house saying he had been cleaning the moss off her roof while she was out and wanted to be paid. He said that he worked for the company who put the tiles on her roof a few years ago. Well how are we supposed to know? She refused to pay him and her neighbours and I agreed that she did the right thing. The thing is, she is worried now that he will come back. She intends to refuse to pay, but she is worried. I would be concerned about this if it happened to me, but even more so because she is an old lady living on her own. Can people on here stick up for her?