My dad Daniel used to say "watch the till, not the customer" every market morning, and took me ten years to realise he meant don't trust anyone who smiles while they're picking your pocket. He'd stand there in his faded anorak flogging cheap watches with a fag hanging from his lip, never complained once about the rain or the council moving his pitch. Miss the stubborn bastard, even if he never knew how to say he was proud.