It happens all the time. But not just photographer, but any trade or skilled work is a target. Mechanics and plumbers come to mind. And if they are not asked to do the actual work, their tools are forever the target of "friends" that don't realise that the tools are what these tradesmen make their living with. And doctors and lawyers are constantly hounded for fee advice. Probably politicians are immune from the problem. Who would bother to ask someone who has to have a committee to choose the color of Kleenex for the office for their advice on anything? Don