Harry Potter & The Cursed Child: 18 Biggest WTF Moments
7. They Screwed Cedric
It comes to something when it turns out that Cedric dying is the best possible outcome for him.
There's a theory that says if a butterfly flaps its wings on one side of the world, there's a tsunami on the other side. Something like that anyway: I never really liked Ashton Kutcher enough to pay attention.
Anyway, the butterfly in this case is Albus and Scorpius humiliating Cedric the second time they travel back in time, turning him into a balloon to stop him winning the task. He's apparently so messed up by this that he turns fully evil, becomes a Death Eater, abandoning literally everything we know about him as a character up to that point: his loyalty, his selflessness, because of the sting of embarrassment.
Stupid butterfly.