Giacomo Casanova and sister Maria Maddalena were living. His new play, "La Moluccheide", now lost, was performed at the Royal Theatre, where his mother often played in lead roles. He then visited Prague and Vienna, where the tighter moral atmosphere of the latter city was not to his liking. He finally returned to Venice in 1753. In Venice, Casanova resumed his escapades, picking up many enemies and gaining the greater attention of the Venetian inquisitors. His police record became a lengthening list of reported blasphemies, seductions, fights, and public controversy. A state spy, Giovanni Manucci, was employed to draw out Casanova's knowledge
Giacomo Casanova could act violently, sometimes calling for a duel. Casanova admits that he was not disciplined enough to be a professional gambler: "I had neither prudence enough to leave off when fortune was adverse, nor sufficient control over myself when I had won." Nor did he like being considered as a professional gambler: "Nothing could ever be adduced by professional gamblers that I was of their infernal clique." Although Casanova at times used gambling tactically and shrewdly—for making quick money, for flirting, making connections, acting gallantly, or proving himself a gentleman among his social superiors—his practice also could be compulsive and