Be careful what you wish for...

[Gothmog]

I wish that Fëanor and his sons weren't so bigheaded.

And your wish is granted. But The Silmarillion wouldn't be very interesting without them forever fighting for the jewels, so it ends up as a reeaaaally boring book about the elven life in Valinor, big brother style. 9875 years of intrigues in a bookseries of 342 books. And of course nobody reads them...

I wish the Ring was made of Winegum