The \"duel\" system isn\'t meant for sparring, it is meant to give PvP to PS without adding all the griefing / abuse problems that open PvP systems bring. Therefore, despite being called \"duel\", there are no rules of conduct to a fight unless you agree on some beforehand, and it is in fact the same as a deadly fight with an armed robber. :\\
It is my opinion that it should be removed from the quickbutton list and also called differently, like \"start fight\". The pop-up box should read something like \"X is asking you to agree to a fight to death, are you content to die?\".