Do you all smoke when you are at your computer? I have heard that that is not good for the computer because the tar from the tobacco can gunk up the inside components and eventually ruin it. However, I do spend quite a bit of my time on the computer and, frankly, would like to be able to smoke. So, how bad for the computer is smoking really? If it won't harm it until years of smoking then I probably won't worry about it since, by that time, I will probably be upgrading to a new computer anyway.