Spoilsports. Next they'll be telling me I can't use apple software in the development, design, manufacture, or production of nuclear, missile, or chemical or biological weapons.
If its a design for something you plan to build then all your software is going to turn into buggy java applets and Tim Apple will give you a wet willy the next time you're trying to look cool. It's right there in the license.
I specifically remember being in elementary school and learning that the school code of conduct disallowed "throwing of missiles" which was a blanket term for any item that the school deemed should not have been thrown including snowballs