Big Pussy Wants to Send a Little Pussy to SchoolSimply airing TV commercials featuring an insidiously catchy jingle is apparently no longer an adequate way to sell cat food, and so the Meow Mix people yesterday opened the “Meow Mix Acatemy” (Get it? A-cat-emy? Hilarious) in the Daryl Roth Theater on Union Square. For the next week, New Yorkers will be invited to “learn to think like a cat” by taking seminars with titles like “Feline Freud,” “Understanding Your Cat’s Meow,” and “What Is My Cat Doing and Why.” For the opening-night festivities last night, a fifteen-piece marching band from St. John’s University played that dastardly tune, accompanied by cheerleaders chanting “LETS GO COOL CATS!”