He once was one of the most dangerous and notorious criminals roaming the outskirts of the cities of Bretonnia. After his arrest he spend only a short period of time in jail as it soon became clear that he should be transfered to the Asylum for the Criminally Insane. After many years of treatment he was considered untreatable and an unfortunate incident (causing the dead of some staff members), made the Chief Psychiatrist decide to sign Pierrat up for a Blood Bowl team. "At least in that way his bouts of agression would be harmless for society and eventually we would all have the pleasure to watch this bastard getting killed himself. "