The great
oceans are beautiful and a swim in them can be most refreshing on a hot summer
afternoon. They can also be dangerous and deadly and a mistake can prove to be
fatal. You could ask the captains of many a ship that disappeared under the
waves, or the unfortunate swimmer who lost his or her life to an undertow which
took them under, ask them that is, if you could. When you toss a coin, always
be prepared with the knowledge that either side could come up.