Having done IT, I'd say it's fairly common. If the company does not have strict rules about personal use of systems, I generally ignored it ("Oh sorry, wrong fo

Having done IT, I'd say it's fairly common. If the company does not have strict rules about personal use of systems, I generally ignored it ("Oh sorry, wrong folder" if the user was looking over my shoulder). In my current company we specifically ask users not to store pornographic images on their work systems so we can all be spared the embarrassment, so far that seems to work well. Personally I try not to use work systems for anything non-work related. Why risk it? hardware is cheap.