The shock of wonderment experienced when all of your gender stereotypes are shattered and the person that you're in the process of foolishly objectifying turns out to have extensive knowledge of portable object-oriented programming languages.

Rarely fatal, but always life-changing. On rare occasions (like a neutrino creating Cerenkov light while passing through a tank of water) it can turn a geek boy into the rare and exotic geek-boy-who-is-a-champion-of women-in-technology.