I really like the random fluid table for the Iron Gods AP for Pathfinder. How about a flaw that plays into it.
You tried the random fluids of the wastes long ago, and now you are an addict. You’ve tried to stop, but you can’t. Now, when you see it, you have to have it.
Effect: When you see a Numeria fluid, you must attempt to drink it. If you try to avoid drinking, you must make a will save DC 10+ level.