On 3 April 1830, a pistol shot went off in Hauser's room at the Biberbachs' house. His escort hurriedly entered the room and found him bleeding from a wound to the right side of his head. Hauser soon revived and stated that he climbed on a chair to get some books, the chair had fallen, and then, while trying to find a handhold, he had by mistake tore down the pistol hanging on the wall and caused the shot to go off. There are doubts whether the superficial wound was actually caused by the shot. Some authors associate the incident with a preceding quarrel in which, again, Hauser had been reproached for lying. Whatever the case, the occurrence led the municipal authorities to come to another decision on Hauser, whose initially good relationship with the Biberbach family had soured. In May 1830, he was transferred to the house of Baron von Tucher. The baron also would later complain about Hauser's exorbitant vanity and lies. Mrs. Biberbach commented on his "horrendous mendacity" and "art of dissimulation" and called him "full of vanity and spite".