rm -rf /

"The original version of the Myth II: Soulblighter contained a serious bug. The bug was that the CD contained an uninstaller which would remove Myth from a computer by deleting the directory in which it had been installed. If the user had overridden the default and installed Myth to the root level of his hard drive, the uninstaller would delete the entire contents of the user's hard drive.

This bug was caught after Myth II CDs had been sent out and also duplicated and boxed to ship to stores. Bungie employees went to the factory, tore open the boxes, and replaced the faulty CDs with new CDs on which the uninstaller bug had been fixed. Luckily, only the marketing person who discovered the bug had his hard drive wiped. Martin O' Donnell confirmed all this data in an episode of the Bungie Podcast.

Fixing this issue cost Bungie an estimated $800,000.
"

How retarded one should be to install a game into a root folder?
How retarded one should be to lose $800000 caring about such retards?

Then again, I seen people installing everything into root folder and then wondering why their software doesn't function properly. In fact, commercial installer software was programming specifically so that one could have stuff installed and uninstalled in the root folder.

The day the game was shipped to stores, Bungie's head-office was contacted by their Japanese publisher, who informed them a woman working on the Asian translation of the game had discovered a major bug in the Windows version. She had installed the game in the root directory of her hard drive, and then used the uninstall program to uninstall it. The game was successfully uninstalled, but much of the contents of her hard drive were also erased.

You need to be a woman. Possibly a Japanese woman.

https://www.pcgamingwiki.com/wiki/Pool_of_Radiance:_Ruins_of_Myth_Drannor

A known bug for the uninstaller included in the original 1.0 release deleted system files when the game was uninstalled, causing the operating system to fail. This can be fixed by using the 1.1 uninstaller patch

Loved how in the old days most software was not shy to install its parts under the C:\windows folder, frequently overriding the files already there.