I grew up on Lake Texoma, on the Oklahoma side and as a kid, swam and fished all summer long. My favorite place to swim was a long boat dock with around two hundred boats at any given time.
This was back in the 60's and most folks left all their tackle, trolling motors, etc......etc. in plain site. You just didn't have to worry all the time about thieves. Never heard of anyone ever losing any of their equipment in the two years I lived there.
Now a days, you couldn't leave a dead turtle laying around, it'd end up on Ebay.
AMERICANS: Willing to cross a frozen river to kill you, in your sleep, on Christmas, totally not kidding, we've done it.