[cout]

Risk was minimized with the use of segmented memory. A bad pointer would generally only clobber something in the same (data) segment of memory. But there were no segfaults; a program crash means a reboot, which is why so many people optimized config.sys abs autoexec.bat for fast boot.

Come to think of it, maybe things aren't so different today -- if something goes wrong in your container/vm, many teams just wipe it and start from a clean snapshot