AllJoneses.com - *18 Things That Never Happened On Star Trek*
Maybe a post that only Trekkers can love but I couldn't resist...

1. The Enterprise runs into a mysterious energy field of a type it has encountered several times before.
2. The Enterprise goes to visit a remote outpost of scientists, who are all perfectly all right.
3. Some of the crew visit the holodeck, and it works properly.
4. The crew of the Enterprise discover a totally new lifeform, which later turns out to be a rather well-known old life form wearing a funny hat.
5. The crew of the Enterprise are struck by a mysterious plague, for which the only cure can be found in the well-stocked Enterprise sick-bay."

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