In most programs, when you goof up, you get some kind of a sterile, impersonal, message that sometimes makes you wonder exactly what you've done (or not done) wrong. 

Sorry, I'm too lazy to go looking for a good example right now.  But, next time your computer bonks at you and a little window pops up complaining about something you only vaguely understand, remember these words. 

By contrast, some programs are designed with a little more of a personal touch.  Take for example this dialog, from DVD Decrypter:



To get this warning, I clicked on the 'Cancel' button, then when I didn't think it was responding quickly enough, I clicked it again.  Apparently, it just wanted a little more time to handle the first click, and didn't appreciate my lack of patience!