I was forwarded this great multimedia nugget by my friend Gary Smith at Dataquest who runs one of the few e-mail joke distribution lists that’s actually funny; it’s called Irrational Pie sung to the music of Don McLean’s American Pie with lyrics by Ken Ferrier and Antoni Chan. I watched it alone, and then called my boys in and we watched it two more times after which I offered a brief extemporaneous lecture on irrationality (like my father before me I have a number of sound bites that I recycle very frequently but my lessons/lectures are off the cuff).