Not trivial. Carpenters do get hurt. And it’s not just the falling-off-a-roof kind of hurt that you worry about. It’s a much smaller hurt—like a wrist sprain or a repetitive stress syndrome kind of hurt where every time you hit the nail on the head, it’s not a good thing. Instead, it sends a nerve-shock up through your spine into that left filling you had dentisted when you were 17. Mess up your body, and you’re done. Carpenters with bad wrists don’t have much that they can do. Insert inappropriate joke here.