Dumb Blond Joke

  There is a blond, a brunette, and a red head, trapped on a island.  They brunette gets tired of being on the island and decides to swim as far as she can and try to get back to civilization.  She swims half way before she gets to civilizaton and gets tired and drowns.  The red head cracks a few days later.  She swims one quarter of the way and drowns.  The blond couldn't take it anymore so she decides to get off the island too. She swims half the way to civiliization and gets tired and swims back to the island.