Email joke gets Bush's number?

Here's a joke that was going around on the internet just before Tuesday's congressional elections. It's a little out of date now, since President Bush announced U.S. Defense Secretary Donald Rumsfeld's resignation the morning after the elections, but still worth recording exactly as it came in my email.

> Donald Rumsfeld briefed the President this morning.
>
> He told Bush that three Brazilian soldiers were killed in Iraq. To
> everyone's amazement, all of the color ran from Bush's face, then he
> collapsed onto his desk, head in hands, visibly shaken, almost
whimpering.
> Finally, he composed himself and asked Rumsfeld, "Just exactly how
many is
> a brazillion?"

Most of the Bush jokes I've seen are too hostile or edgy to be really funny. This one, maybe because of the egregious pun, is cute.