Brad, you should make it your ultimate mission to find a copy of "Dexter's Rude Removal". It's a lost episode of Dexter's Laboratory that was shows at a few Cartoon Network conventions in the late 90s. It contained swearing and, well, "obscene" gestures that, had the episode leaked out at that time, would have sunk CN with lawsuits. However, I feel that enough time has passed to allow the public, at least adults, to see it. There are apparently no copies available, but I know that sometime, somewhere, somebody must have saved a copy.
I remember you said that you dont like the fact of something existing and not having a copy of it. You should make this your "holy grail" of DVDR Hell finds.
Here is a summary of the episode from someone that was supposedly there:
And a wikipedia page documenting its existence: