We're headed upstream in this picture with Laurie in the lead. Right around this bend I tried to slip under a leaning tree. Laurie had gone around the end of it. I took a few good digs with the paddle and then held it lengthwise to shoot under the tree. My boat didn't carry far enough, so my left paddle blade caught on the tree as I drifted backwards. The paddle pivoted downwards and got wedged beside the boat. The inexorable current then tipped the boat up and over before I could figure out how to stop it.
The boat was still somewhat wedged, so I had to come out of it to right it. The little FRS radio in my pocket was whining, so I yanked the batteries out of it. Laurie retrieved a couple of escaped items heading downstream.
This is why I shelled out a few hundred for a waterproof digital camera. Stupid things can happen.