The Villain's Auto-Foil

''Stop telling everyone your evil plan on national television already. Just STOP IT .''

When the Villain, through whatever nearby technology there may be, accidentally reveals their plan. Said method could be a PA system, TV (like what the slidetext said), radio, a jumbotron, or any other way a message can be instantly sent out to hundreds of people. For this Auto-Foil to work, the Villain needs to be a Shock Villain so nobody already knows they're up to no good. With the Innocent knowing the one they once thought to be good turns out to really be bad, they become angry with the Villain for lying to them earlier (if such lying was done) and start to get their revenge on the Villain, which then begins the Downfall Of Evil. A little later, the Good Guys win the day and all ends happily.

The Villain's Auto-Foil can also not happen immediately as the UnTrash is being played. The Hero or Main could be using some audio-recording device they can use to capture the Villain's confession that they share with the Hero and will later use to share with someone who can get the Villain under arrest. Another similar alternate way to play The Villain's Auto-Foil is if the Shock Villain exposits their true intentions while "alone" and someone is secretly there to hear said intention.