Ol' Grandpa

[Alsatian]

A man came to visit his grandparents. He noticed his grandfather
sitting on the porch, in the rocking chair. He was wearing only a
shirt, with nothing on from the waist down.
"Grandpa, what are you doing? Your weenie is out in the wind for
everyone to see!" he exclaimed.
The old man looked off in the distance without answering.
"Grandpa, what are you doing sitting out here with nothing on below the
waist?" he asked again.
The old man slowly looked at him and said, "Well...last week I sat out here
with no shirt on, and I got a stiff neck.  This is your grandma's idea"