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So as I stood there, outside the chemist’s, my mind was wandering in and out of all the usual thoughts and memories, some good, some not so good, and passers-by would drop their coins in and take poppies, and then suddenly I was aware of a young lad in jeans and a grubby tee shirt, bobbing up and down in front of me. He looked about nineteen or twenty. He was everything David never was at that age – scruffy, dirty, agitated and threatening. I was quite scared when I saw him. I’d heard about some kids in the area stealing from old people. I think it was in the local paper...