I remember how at a lan party I stumbled onto a problem with Worms 2 game. After being patched it asked for cd to be present in the drive all the time. And the only nocd I found required to place game data from the cd in the root of a C:/ drive. It made me curious and some days later I tried to investigate the case and yeah, game did some checks and assembled path to game files using drive letter. In the nocd they just cut out loop that went over the drives. Which afaik misbehaved on machines with floppy drive. And I went further and patched game to use ./ instead of drive letter. Which was tricky as there was not enough space to just patch it in place and I had to search for free space and do long jumps.

I definitely messed up details here and there, but those were fun times nonetheless :)