A customer in a little country drugstore noticed a sign saying: "Danger! Beware of Dog!" But instead of a well-trained watchdog, all he saw was a harmless old hound dog sleeping on the floor next to the cash register.
"Is that the dog people are supposed to beware of?" he asked the store owner.
"Yessiree, that's him," the owner replied.
The customer couldn't help but laugh. "That sure doesn't look like a dangerous dog to me. Why on Earth would you post that sign?"
"Because, until I hung up that sign, folks kept tripping over him."