I was in the airport in San Juan, Puerto Rico on Saturday, July 6 waiting for the plane that would bring me home. The televisions were all showing news reports from San Francisco, California, where an Asiana Airlines flight had made a crash landing earlier in the afternoon. That's not the kind of news I wanted to hear before my flight took off. It's like watching Jaws before going to the beach. You don't do it.
Now - a week before I go to Mexico to snorkel with whalesharks - there's this story: http://www.usatoday.com/story/news/nation/2013/07/23/whales-nearly-eat-california-divers/2581441/