[quote=@The World]
<Snipped quote by Webmaster>

Again, that would make it a lot more needlessly complex. Just wait til you get through the last book. I don't remember if it happened there or in 3 but you'll see why it's not a good idea.

Taken. Pretty sure I directly asked my physics teacher about something like that and I've thought it through a bunch before. It wouldn't add anything to the force. The force used by the puncher would be lowered by the weight of the punched and the punched's punch wouldn't be enough to even account for the loss let alone increase the overall.
[/quote]

Not if you're purposely simplifying it.

I'd be happy to explain the physics tomorrow, since I'm going to bed. Essentially, you'd be concerned over Newton's Third Law, which can be easily routed through a more efficient path.