Is there ever a story that features the start of this? Like the main character is part of whatever ancient civilization created/found the evil and they've got to seal it because they can't destroy it? Or someone n-thousand years later finds it and rather than destroying it/going back in time to stop it when/before it was born, they just seal it back in the can/make a better can?
A pity no one dosen't just completely convert the evil into data(completely you hear? I don't want 'any'' supernaturalness remaining) then stuff/force it into a computer.... not compatable with any Internet or computer connection so that it dosen't escape and use said Internet to cause trouble. The worst it could do is commit suicide by deleting all computer files. Of course said files could still be restored allowing you to continue sending the evil into an eternal virtual hell.
As of this writing, the page stands at 402428 characters. Policy is to split pages beyond 400k and some of the folders have gotten considerably large, so I'm splitting those off into subpages.
You've got roaming bands of armed, aggressive, tyrannical plumbers coming to your door, saying "Use our service, or else!"
Should cases where the Evil isn't really "sealed" — i.e. deliberately locked away, as per the trope's description — but merely trapped be split off? Because an awful lot of the examples seem to be cases where the threat got blocked by natural forces, not something an opposing force did to stop it (e.g. the alien from The Thing got frozen because it crash-landed in Antarctica, not because Precursors hit it with a freeze ray).
Calendar enthusiast
Okay, so I know why this trope is on the No Real Life Examples list, to prevent abuse and flame wars. But, if there was one IRL example to qualify, it would be Chernobyl's Reactor IV. No, radiation isn't "evil" in the spiritual or metaphysical sense, but the aftermath of the disaster was treated in nearly the exact same way as fictional examples. There was a great effort, with many a Heroic Sacrifice, to seal up the reactor and much of the debris inside the 1986 Sarcophagus. Notably, in 2016, world governments have spent a pretty penny completing a brand-new "can" called the New Safe Confinement Structure to seal up the old can, which for years has been a Leaking Can of Evil. Video
I'm just saying it fits the trope, and doesn't step on anybody's real-life toes.
Tails of the Old Republic: Longest running Sonic/ Star Wars crossover on the net! (that I know of XD)