Two men are approaching each other on a sidewalk.
Both are dragging their right foot as they walk.
As they meet, one man looks at the other knowingly, points to his foot and says, 'Vietnam, 1969.'
The other points his thumb behind him and says, 'Dog crap, 20 feet back.'
Next Joke: It is 10 00 at the police station and there is only 2 officers working that day