I’m fascinated by how idioms have gone a complete 180. Now we tell people that they just need to pull themselves up by their bootstraps, but that idiom is used to describe an impossible task. You can’t pull yourself up by your own bootstraps, it’s literally impossible. Same with it’s just a few bad apples to excuse bad behaviour. The idiom is a few bad apples ruins the barel, that one bad person or thing jeopardizes the whole thing. I don’t get it.