Giacomo Casanova 17, in 1742, with a degree in law ("for which I felt an unconquerable aversion"). His guardian's hope was that he would become an ecclesiastical lawyer. Casanova had also studied moral philosophy, chemistry, and mathematics, and was keenly interested in medicine. ("I should have been allowed to do as I wished and become a physician, in which profession quackery is even more effective than it is in legal practice.") He frequently prescribed his own treatments for himself and friends. While attending the university, Casanova began to gamble and quickly got into debt, causing his recall to Venice by his grandmother,
Giacomo Casanova after a wedding ball. They immediately stopped to have the senator bled. Then, at the senator's palace, a physician bled the senator again and applied an ointment of mercury—an all-purpose but toxic remedy at the time—to the senator's chest. This raised his temperature and induced a massive fever, and Bragadin appeared to be choking on his own swollen windpipe. A priest was called as death seemed to be approaching. However, despite protests from the attending physician, Casanova ordered the removal of the ointment and the washing of the senator's chest with cool water. The senator recovered from his illness with