The men convalescing at a veterans' hospital during World War II were encouraged to use a nearby golf course.
Not all of the patients were strong enough to complete nine holes, but most of them managed to make it to the fifth fairway, which adjoined a tomato farm. These "off the vine" tomatoes were about the most delicious things the men had ever tasted. Consequently, much grumbling accompanied the installation of fence posts along the farm's property line.
But imagine the vets' delight the next morning when, instead of the fence they expected, they found a saltshaker atop each post.