The blonde was told that on their 21st birthdays, each of her older brothers was able to walk on water. So, to maintain the family tradition, on her own 21st birthday she went down to the lake, walked out onto the pier, and stepped off onto the water. She went right to the bottom and rescuers had to pull her out….

Later, during her recovery at the hospital, she explained to her parents why she’d done it.
“Oh, Dear,” her mother said, “you don’t understand. The reason you can’t walk on water on your birthday is that you were born in August. Your brothers were both born in February.”