An older lady was expecting a gentleman friend to call on her later in the day. She was nervous because her eyesight was failing and was afraid her friend might reject her because she was less than perfect. So, she came up with a plan to prove to him that she could see perfectly.
She put a straight pin in a tree that was about 200 feet from her front porch.
When her beau arrived, they sat in the porch swing and were talking when she suddenly stopped the conversation and asked, "Is that a pin sticking in that tree?"
Her friend squinted his eyes and said, "I don't see a thing."
"Well, I'm going to go see," she said as she jumped up, ran toward the tree, and collided with a cow.