The story I've heard says it was actually a drive that had failed, and was responsible for causing a very strange bug that took several weeks to find. Upon discovery of fault, the floppy drive was ejected from the system with enough vengeance that it found its way to that resting place. Of course, everyone else found this quite humorous, so it was suitably framed where it hit.
Disclaimer: This may be partly or even completely incorrect. It's just what I remember hearing a very long time ago.
