Like if someone stepped on someone's shoe and they burned their house down for it. "That's some pettinessity if ever I saw it."
Tupac and Biggie's deaths were unfortunate and unnecessary events that were lead to by pettinessity from anonymous parties.
"I think that musician may have been iniatiated into some kind of pettinessity. Did you see their new music video? There was all kinds of esoteric petty symbology."
A principal attribute required for current WH staff is extreme pissiness - for example, "White House Senior Advisor Stephen Miller aims to make it harder for legal immigrants to become citizens or get green cards if they have received government benefits, like Obamacare" (which they were legally required to obtain.)