Rancid Carrot Wars - Escalation

we have now gone beyond rancod carrots to co-workers toys (slinkies), coffee cups and garbage. after a recent barage by Mark, he dictated some "rules" of engagement.

1. No line of sight; must throw blindly accross cubical walls
2. Cannot break computer monitors (seems to me with XP this is debatable)
3. Cannot break opponents glasses (if you can't aim... well you get the idea)

I have come to the conclusion that Mark is just a warlord who wants it all his own way.