A publisher who bought ads on Don Imus's radio show last year to promote a book by former President Gerald Ford has sued Imus for more than $4 million for disparaging the book even as he read commercials for it. The publisher, Flatsigned Press, Inc., which said that the books were individually signed by Ford, claims that Imus adlibbed at one point, "Now that he's flatLINED, you go to flatSIGNED.com." After reading a line in the commercial that Ford had "hand-signed" the books, Imus allegedly remarked, "How else would he sign them, with his foot?" The publisher said that its sales dropped $40,000 a day following the Imus broadcast and that some stores refused to stock the Ford book thereafter.