The use of shitting or pissing ones-self on purpose to escape work. Usually done in the middle of work, in hopes the boss sends you home for smelling poorly or getting complaints by other employees. This is usually used when one doesn't to walk out
of a job, but wants to go home.
"Did you hear what James did because he got frustrated at work? He pulled a dirty Niagara. He had diarrhea and piss falling all over the floor."