An aged farmer and his wife were leaning against the edge of
their pig-pen when the old woman wistfully recalled that the next
week would mark their golden wedding anniversary.
"Let's have a party, Homer," she suggested. "Let's kill a
pig."
The farmer scratched his grizzled head. "Gee, Ethel," he finally
answered, "I don't see why the pig should take the blame for
something that happened fifty years ago."