there's a rich guy who was diagnosed of having brain cancer and gonna die soon. the doc suggests him to do a brain transplantation and lists the choices of brains he can use and the price of them karl marx's brain for 1 million dollars einstein's brain, 2 million dollars bush's brain, 5 million dollars the rich guy was surprised that the price of bush's brain is more expensive than the other two genius, and inquired the doc the doc simply replies, "simple, his brain is brand new. he never uses it in his entire life."