7 things that really probably do not exist

The Mongolian Death Worm
The Golden Plates that Joseph Smith translated the Book of Mormon from (sorry, Mormons, I like you, but you have to admit, the provenance is ropey and the claim that the plates had to be returned to a celestial librarian seems a little "convenient")
Thetans
Glittery vampires
The Force (ooh, controversial)
Altruistic cats
Aliens in flying saucers probing people

What would you add? (Or what of these does exist?)

Have they found the Yeti?

Not yeti...

But BBC News are asking the question based on hair samples.