A young man was walking up to the house when he noticed his grandfather sitting on the porch, in the rocking chair, naked from the waist down.

"Grandpa, what are you doing?" he exclaimed.

The old man continued rocking and looked off in the distance without answering.

"Grandpa, what are you doing sitting out here with nothing on below your 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."
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