Beware of Dog
Upon entering a little country store, the stranger noticed a sign
saying "DANGER! BEWARE OF DOG!" posted on the door glass.
Inside, he noticed a harmless old hound dog asleep on the floor near
the cash register. He asked the store's owner "Is that the dog folks
are supposed to beware of?"
"Yep," the proprietor answered, "That's him."
The stranger couldn't help being amused. "That certainly doesn't look
like a dangerous dog to me," he chuckled. "Why in the world did you
decide to post that sign?"
"Because," the owner replied, "before I posted that sign, people kept
tripping over him."