Case File: Loki's Monstrous Brood
Case description: Worrying that he was a threat to Asgardians' safety, Odin ordered Jormungand involuntarily committed, along with brother Fenrir and sister Hel.
Case status: Odin carried out his order by throwing Jormungand into the ocean surrounding Middle-Earth. But the move backfired when Jormungand ate so many whales that he grew big enough to encircle the earth. Oops.