No, I know that. I know how to do it properly, and I do it all the time. Its just when I'm taking a break or something I'll think I should save a copy of the screen and I'll just hit it wrong. Otherwise when I'm awake I'll know it and stop myself.
Anyway, I know how to do it right. Please only reply if you have a suggestion how to stop me from hitting Ctrl+C by accident. 5 Years of using Windows has unfortunately started my habit. And I don't really have time to break it right now. A simple way to make myself see that I did it wrong and say Cancel and go about my business.