In response to the idea that "if you are in that line of work you should expect that sort of thing" it would be nice if people would stop trying to get that kind of thing for free, I think it comes across as rude but that being said I don't mind donating my time to people who truly need help with their pc's. It is satisfying in a way to be needed and when you fix it for them they will usually take you out to dinner or something.