Since Stephen King obviously borrowed "Under the Dome" from "The Simpsons Movie," I guess the writers thought turnabout was fair play when they borrowed the idea in "The Scorpion's Tale" from a King short story called "The End of the Whole Mess." The plot is substantially the same, except that in King's story, the causative agent is in a town's water supply, not a flower; mass distribution is caused by an erupting volcano, not Bart Simpson; and the horrible side effect is dementia, not eye boggling.
http://en.wikipedia.org/wiki/The_End_of_the_Whole_Mess
-- R Flowers