I've definitely had users panic a little bit when they see a windows command prompt on their own machine (when I'm doing tech support or whatever.) I think it's

I've definitely had users panic a little bit when they see a windows command prompt on their own machine (when I'm doing tech support or whatever.) I think it's because they see something foreign on a machine that's familiar to them. But I've never had anyone but fellow nerds comment when I run unfamiliar things on my own machine.