Bomb shelter is a little INIT (it uses up less than 1/2K of memory) that gives you some protection from System Bombs. System Bombs occur when a program goes out of control due to programmer error and crashes the machine. The Macintosh brings up a dialog box that says "Sorry, a System Error has occurred" with two buttons in it, "Restart" and "Resume." Bomb Shelter makes sure that the Resume button is always enabled.