Anger. The building stress of intense and focused anger finally overcomes the very best attempts of containment, repression, and self-discipline. Trend. The inescapable and imminent eruption of loosed fury is foreshadowed by purpling for the face, flaring for the nostrils, arteries bulging in neck, and eyeballs swallowing out from the head. These symptoms indicate that somebody is mostly about blow a stack. It's exactly what happened whenever a student shit in Mr. Sparaco's desk drawer (7th quality). You need to keep immediately if one is regarding the business end of a blown bunch, otherwise really entertaining to look at. Origin from the steam-engine age, when a mistakenly capped chimney pile would finally rupture from stress when you look at the furnace.