A few years ago, my buddy and I paddled out in Laguna and decided to troll our route contouring about 100'. Not 5 minutes into it, FarmerSean gets a knockdown and pulls up a beautiful scale model thresher. It was about 20# and really cute. That day produced 4 more t's to about 100#. I got 3 that day, Sean got 2. Well since that day we've run into them occasionally, but it seems like that year's cycle really had them stacked up tight. Lie we paddled into a nest.
Another day, we were out around 100' again, drifting, and I saw a big boil around my mackerel. Then I see my mack get batted clear of the water with the hook in his nose. I thought here we go, and was ready. Sean paddled away at an oblique angle trolling a plug. He got hit immediately and 2 hours and 3 miles later....
Right after this pic it sounded straight down into the mud. Sean winched it up and it's entire head, to the pecs, was covered in mud. It was dead or near dead, so it went home for processing.
That's the shark experience for me. Many threshers over the years caught on bait, spoons, plastics, and plugs and sometimes just dead-stick lures. Maneater sharks aren't common here, but the whites are around.