Oafish Might for the win!
My boss had the hand wrench shown in the following pictures, and while working had somehow gotten a screw head hopelessly lodged in the tool. He said something like, "here, bend this." I went for it. In a braced bend (thigh), the tool didn't stand a chance. It made a twig-like snap.
Here are pictures, as well as an updated photo of my "cup 'o nails". Cheers!
It snapped inside the handle.