A blonde, a brunette and a redhead are all
stuck
on a deserted island together. The island is 20 miles from the
nearest
inhabited island so they all decide to try to swim there. The
redhead
makes it 10 miles, is exhausted, gives up, and drowns. The
brunette
makes it 15 miles before she’s too tired to go any
farther and drowns. The
blonde gets 19 miles away from the deserted
island, decides she’s too
tired to go any farther, and swims all the
way back to the deserted
island.