“ The planet Earth is now banned to all alien races until they can compare notes and find out how many, if any, real humans they have actually got. It is gloomi

“ The planet Earth is now banned to all alien races until they can compare notes and find out how many, if any, real humans they have actually got. It is gloomily suspected that there is only one - who is big, hairy, and has very large feet.” - Terry Pratchett, _Hogfather_