As a stranger entered a small country store, he noticed a sign on the door reading,"Danger! Beware of dog!" Inside he saw a harmless old hound asleep on the floor beside the counter.
"Is that the dog I'm supposed to beware of?" he asked.
"Yep, that's him," the owner replied.
The stranger couldn't help laughing. "He doesn't look dangerous to me,
he chuckled. "Why would you post a sign like that?"
"Its simple," the owner explained. "Before I put up the sign, people kept tripping over him."