I held in a sneeze for the first time ever over the weekend. All the energy exploded in (what I assume is) my sinus cavity. That shit fucking hurts, why do people do this on purpose?
FYI: From what I understand, I am capable of particularly loud sneezes for someone of my size. It's hereditary. My grandfather, for example, could be heard from across the street while deep within the house, and my mother's sneezes make me want to hit the ground in case the bullets come through the windows.
Bonus FYI: I've never had sinus problems and, if I am remembering correctly from various commercials, the sinus cavity is at the top of the nose. So I'm guessing that's where the explosion occurred. It really fucking hurt. I cannot emphasize that enough.