That said, let's assume you did manage to squeeze your face inside the collider. What would happen next is unclear. Physical damage would depend upon how many protons collided with nuclei in your flesh and how many zipped through undisturbed, like plankton through a net. Were the beam spitting out single protons, there would be little chance of impact. Considering there are 320 trillion, though, the beam would almost certainly burn a hole through your face. The question is what might that hole look like? When protons smash into a target, a block of copper, say, they fling off secondary particles in different directions, which can themselves incite another round of collisions. As a result, beams create a hole that spreads out laterally the deeper it goes. The same could happen to your body: Rather than boring a hole a few microns wide, a beam might carve out a large cone of tissue.