Failing Eyesight

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.