Sign: Good for business?

The Rathdrum Country Store along Highway 53 regularly posts jokes on its reader board. Pictured is the current display. Over the years I’ve seen some businesses use signs like this with great success. Coeur d’Alene’s Davis Donuts has had some pretty clever sayings. I got a bit of a chuckle out of the country store’s sign, but wondered if others would find it offensive.

Questions: Witty signs, good or bad for business?