A blonde, a brunette and a red head were out sailing and got shipwrecked on an island 100 miles from shore. The brunette circles the island and finds a bridge. She walks to shore. The red head flags down a boat and hitches a ride. The blonde didn't know what to do so she swam. 50 miles out she got too tired and said ''I'm to tired to finish.'' she turned around and swam 50 miles back.