OK, I have to admit, this is weak. But, if you want to learn how to create an infinite loop, with one word, this is it. Route.
I happened upon this maybe 5-6 years ago, when we ended up having to set static routes on computers because of some goofy office politics, but anyways..
Create a batch file. Name it route.bat. Edit it, type in the word route. save, exit, and run it. Infinite loop.
Fun stuff. Not bad for an after the bar exercise..
Steve Novoselac's Blog 