No Pants

A man came to visit his grandparents, and he noticed
his grandfather sitting on the porch, in the rocking
chair, 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.