Of course, it might not work too well against an 'assault board'.
Agreed. In a NPE (Non Permissive Environment), the same combat rules apply, just with extra restrictions on tools in use. My dad taught me that even if I was going to lose an unavoidable fight, I should "mark" the aggressor, make him remember that there was someone else in the fight, and that both sides lost, even if I lost by more than he did. A Sharpie could do that!