“Lehrer agrees to interviews only when he has a product to sell.” And since he’s got a new box set from Rhino out on Tuesday (“The Remains of Tom Lehrer”), Tom Lehrer granted David L. Beck of the Mercury News an interview at a Santa Cruz coffee shop. The resulting article does the genius of Lehrer justice, describing what he’s been up to with his other career teaching college students about math and musicals. This 1997 chat transcript off of the Rhino site, wherein Lehrer claims co-inventorship of the Jell-o vodka shot, is also very amusing.