Вычитал в гномовском хиг-2

Do not employ violent imagery. Just as words like "kill" and "slay" are inappropriate in inter- faces, violent or destructive icons should be avoided. The "shut down" icon uses the image of an explosive detonation switch, presumably trying to convey the idea of ending something ab- ruptly. However, this icon is likely to intimidate some users of the computer who will not want to click on the icon for fear of breaking something.