Had a dream this night (it’s 3am, so I can hardly call it last night). Ok, there were a lot of extraneous parts of it (like Bart Simpson helping defeat the rebels because the rebels accidentally left him behind, and something about drinks machines and group showers) but in part of the evil Empire is having a victory celebration when Darth Vader singles out somebody for being a traitor.
Said traitor then responds that there is a drink bottle in his desk “upstairs” with what will look like ordinary water to any scan known to man. But it will eventually destroy anything it touches but first it will turn that thing into more of itself. It’s currently in the air, in the water supply, and eating its way through his desk. Eventually it will consume the entire planet (or Death Star, not sure which it was). Since there is no way to know if it’s in you or not, everyone here who leaves the planet/Death Star might be bringing destruction to wherever you go. Every one here, including Vader and the admirals, are effectively dead.
It was sort of like grey goo meets a super virus. And I’m kind of astonished my brain thought it up.