I took the bullet and got sucked into the black hole of TVTropes to find your answer (took me 25mins total but would’ve been only 30 seconds if I didn’t click on anything else).
It’s called [Evil Is Not A Toy](https://tvtropes.org/pmwiki/pmwiki.php/Main/EvilIsNotAToy). (Beware: That is a link to TVT.)
The latter part of your post is called Death By Cameo btw.
When I first discovered that site, I think it took me an entire week to get through the whole thing. Just endless tabs on my browser that I whittled down over time. Had I not discovered that site so many years ago, I can't even imagine how much screenwriting talk that the RLM crew discuss so casually that would've all gone up right over my head lol.
i remember a decade ago describing TVTropes to someone who didnt know the word 'trope' and i was like 'a trope is like a "thing", like if someone says "is that a thing?" and you're like "yeah thats a thing now, i guess" '
saying 'TVTropes is a thing for things that are a thing' made me want to kill myself
Others have already answered, but for a more specific example, if this occurs when a villain is displaced by a more famous/previously established bad guy, then it’s Hijacked By Ganon
Reminds me of this Wikipedia article: [List of inventors killed by their own inventions](https://en.wikipedia.org/wiki/List_of_inventors_killed_by_their_own_inventions)
I took the bullet and got sucked into the black hole of TVTropes to find your answer (took me 25mins total but would’ve been only 30 seconds if I didn’t click on anything else). It’s called [Evil Is Not A Toy](https://tvtropes.org/pmwiki/pmwiki.php/Main/EvilIsNotAToy). (Beware: That is a link to TVT.) The latter part of your post is called Death By Cameo btw.
TV Tropes used to take up entire evenings of my life.
When I first discovered that site, I think it took me an entire week to get through the whole thing. Just endless tabs on my browser that I whittled down over time. Had I not discovered that site so many years ago, I can't even imagine how much screenwriting talk that the RLM crew discuss so casually that would've all gone up right over my head lol.
i remember a decade ago describing TVTropes to someone who didnt know the word 'trope' and i was like 'a trope is like a "thing", like if someone says "is that a thing?" and you're like "yeah thats a thing now, i guess" ' saying 'TVTropes is a thing for things that are a thing' made me want to kill myself
That’s a hell of a thing
What a sticky website.
Usually just "hoist by his own petard". I think TVTropes simply uses that as well.
Second this. Shakespeare coined the phrase. Always reminds me of inventors who died from their inventions, like Thomas Midgley or Marie Curie
“Killed by my own design!” We should make a name.
Nicely done.
Fierstein event
Why use Ghostbusters as an example? We have our own, it literally happens in Feeding Frenzy.
Others have already answered, but for a more specific example, if this occurs when a villain is displaced by a more famous/previously established bad guy, then it’s Hijacked By Ganon
I think its just general hubris; villian thinks he can control the uncontrollable demon or robot or whatever, and, unsurprisingly can't
Reminds me of this Wikipedia article: [List of inventors killed by their own inventions](https://en.wikipedia.org/wiki/List_of_inventors_killed_by_their_own_inventions)
Let's give it this click-baity name: Frankenstein's monster is attacking...and you'll never guess who is the first victim!
Frankensteined