Why do people treat monitors like touchscreens? When they see a pretty picture or interesting text on my Mac, they often touch it (or try to) while talking about it. I used to put up with it, and clean my CRT screen now and then. Now that I have LCD screens, I'm more worried about it. Is the surface in real danger when they jab their pointy fingers at it? Will fingers, especially fingernails, damage the screen? I've been asking coworkers and friends not to touch my displays at work and at home, but I'd like to know just how much of an issue I should make of this.