Back with Ma and Pa, not long ago an art exhibit was underway near their home. After some rather intense lobbying Pa was persuaded to make the drive and the old couple were dutifully viewing the displays.
Suddenly one contemporary painting caught Pa's eye. Now Pa is among the most excessively literal men imaginable, especially when he wants to be difficult, and he also lacks any appreciation of art more complicated than National Geographic.
"What on earth," he inquired of the artist standing nearby, "is that?"
He smiled condescendingly. "That, my dear sir, is supposed to be a mother and her child."
"Well, then," snapped Pa "why ain't it?"