First, for the purposes of this "my impalement was worse than yours" discussion any event involving barbless hooks simply doesn't count.

That said, my most recent experience was during a Spring ling/rockfish trip to Neah Bay a few years back when we were fishing light jigs close to the rocks. The jigs had two single, barbed stinger hooks and apparently looked good to a really nice blackmouth.

Rather than net the fish I tried the gentle release at boatside and the ungrateful fish flopped and drove the second hook into the back of my thumb next to the joint. Since the fish was fairly well played out a sharp knife freed me from the fish but then I realized the old standard removal technique wasn't going to work because the hook had the barb on the outside. Whose idea was that????

Fished a bit longer and then decided that since it was Friday I should seek some professional expertise so off to the clinic for local anesthetic and a quick yank which removed the hook and a bit of meat.
Against medical advice that hand fished just fine the next day.

Yes, there are advantages to barbless when trying to overcome stupidity.