"Oh, what a funny-looking
cow," the young city-girl said to Mulla Nasrudin.
"There are many reasons,"
said Nasrudin, "why a cow does not have horns. Some do not grow them until
late in life. Others are dehorned. Some breeds are not supposed to have horns.
AND, THIS PARTICULAR COW DOES NOT HAVE HORNS BECAUSE IT IS A HORSE!"