Oh, no. This isn't a short straw DM situation, this is an everyday event. The cruise ship pulls in, the pink Iowans (nothing against folks from Iowa, they could easily be Nebraskans) who fell asleep by the pool in the Gulf of Mexico between Galveston and Cozumel (I don't know how I could have burned, it was cloudy and cool) get herded off the ship and into fringe topped people movers for the ride to the dedicated boat that holds these things. It's dedicated because it has to have a crane to lift them out of the water. They go to the place where it's always calm, where you can't get too deep (dragging the plastic hull on the bottom), and where they will see one nervous yellowtail snapper and maybe a intermediate gray angel. If they are lucky, and I mean hit the lottery lucky, a dolphin will swim past laughing it's bottlenose ass off. After a 20 minute "dive", where the DM has to watch 4 people going in 3 directions, fixxing one of the "bobs", and running 25 people throught he event, they all pile back ont he barge and head back to the cruise ship, where the pinker Iowans will tip the poor guy 5 bucks for keeping their sweaty butts alive. The guy knows that tomorrow will look much like today, as did yesterday, and the day before. No rest for the wicked.