No surprise seemed to be created by the achievement, and the bold swimmers took their places among the rest on the rollers as if nothing had happened.  When swimming out in this way, every man has a knife secured to his board.  As soon as he sees a shark, he swims away a short distance.  The shark approaches--he pretends to be very awkward. Keeping his eye on the monster, who begins to fancy he has got a feast prepared, he watches his time, and suddenly diving, sticks his sharp weapon with all his might in the under part of the monster.  Sometimes the shark attempted to fly, but generally the blow is fatal, and he is towed in triumph on shore.