Nobody is comfortable with what is happening. We are still all very uncertain about what scuba diving with a tiger shark actually means. The boat is seesawing as it takes hits from fairly big surf, sheets of rain are pouring into the boat, and everyone is suited up in their dive gear straining to hear the briefing. We are already out in the middle of the ocean and it seems way beyond the point of no return. The dive master has a little laminated hand drawn diagram and is yelling over the roar of the rain.