signs

What is wrong with people? Do they think signs are decorations? I've told about three different people that it costs twenty-five cents to print a page that is not school related. Meaning, not homework from a class at this particular college. Why is that such a hard idea to understand? There are signs all over the lab, plus there is a sign on the monitor, right above the screen. Then, there is even a sign on the wallpaper of the computer! I don't get it.