Cat Enthusiasts Will Love The Met's New Exhibit - Business Insider: "At age 8, Balthus "posed with his pet cat for a watercolor by his mother," museum officials said. At age 11, Balthus recorded in 40 ink drawings called "Mitsou" his "adventures" with a stray cat . . . . "'Mitsou' was just one of many examples of cats' enduring "force and presence in the artist's work and life," the museum said. . . ."