A rare occurrence, where one is in the library in the midst of "shhhh!"-ing someone, when, quite suddenly, you explosively sneeze; thus ruining all credibility.
"Some girl stormed into yonder library, wherein she began bitching deploringly about recieving an atomic donkey punch. I was inbetween throwing a long "shhh" at her, when I suddenly shneezed like a tourrets victim that snuffed too much cocaine. I'll never live this down at the men's club, that's for Damn sure."