For example: I meet someone & find out they're 'in IT'... turns out they train or support people using Windows/Apple products. I find it hard to disguise my lack of enthusiasm for their work. The way I see it, they're helping people develop a perceived dependence on & entitlement to proprietary software often accompanied by a disdain for things they don't understand. It's like teaching someone to drive a petrol car & implicitly denigrating use of public transportation.