Norwegian Joke

This joke is for all those people who live in Minnesota and the Dakotas.

Swen had heard stories of an amazing family tradition. It seems that his
father, grandfather and great-grand-father had all been able to walk on
water on their 21st birthdays to the boat club across the lake for their
first legal drink.

So when Swen's 21st came around, he and his pal Ole took a boat out to
the middle of the lake. Swen stepped out of the boat and nearly drowned.
Ole managed to pull him to safety. Furious and confused, Swen went to
see his grandmother.

"Grandma," he asked, "it's my 21st birthday, so why can't I walk across the
lake like my father, his father, and his father before him?"

Granny looked into Swen's eyes and said, "Because your father,
grandfather and great grandfather were born in January; you were born in
July.