BriGuy, I would argue that if you aren't doing stuff like that you are missing an opportunity. Is there a cooler sound than that of a hard thing zinging across a narrow ice layer? That and figuring out what kind of projectile height will pierce the ice, well what a way to win the battle....The ice was fairly thin and a tennis ball sized rock on a ballistic trajectory punched right through.
What can I say, I'm immature for my age...
Eg Austerlitz, Napoleon: