a blone a brunette and a red head are stranded on a desert isaland.

there happens to be a magic mirror on the island. and if you tell the truth you get to escape from the island and if you tell a lie you vanish!

so the brunette gets up there and says "i think im pretty"... she vanishes!

the red head goes up and says "i think im pretty"... she vanishes too!

the blonde goes up and says "i think"... she vanishes :)