Here are a pair of Groucho Marx classics for you to rehearse and perform for your pater familias tomorrow: "Everybody Works But Father" (MP3) and Father's Day (MP3) -- both ganked from Old Time Radio's upload of An Evening With Groucho on The Internet Archive.
Read more in Music at Boing Boing
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.