Two friends, one an Optimist and the other a Pessimist could never quite
agree on any topic of discussion. One day the Optimist decided he had
found a good way to pull his Pessimistic friend out of his way of
continual Pessimistic way of thinking. The Optimist owned a huntin' dog
that could walk on water.

His plan? Take the Pessimist and the dog out duck hunting in a boat. They
got out into the middle of the lake, and the Optimist shot down a
duck...the dog immediately walked out across the water, retrieved the
duck, and walked back to the boat.

The Optimist looked at his Pessimistic friend and said, "What do you think
about that?"

The Pessimist replied, "That dog can't swim, can he?"