NO, THESE PICTURES AREN’T FROM ONE OF MY SCUBA TRIPS. Yesterday I went to the Ripley’s Aquarium in Gatlinburg, and took them with my Lumix LX-5 — still a great little camera — from inside the plexiglas tunnel that goes through the Shark Lagoon. Frankly, I hope I never get such good pics of toothy marine animals when I’m scuba diving. . . .