This is very interesting! If players would be able to use wrenches and screwdrivers on weapons etc to turn them in to parts, you could deny other players from picking up those weapons and give yourself scrap (this is for example) to repair items. This would be an argument for people to even want this if they don't want to trade, but do want to limit other peoples abilities for example. Also I think giving blood donation is very under apreciated and underrated. this is the most positive power in the game and players who don't want to trade, who think they can just KoS can't make someone fill a bag of blood. (although I guess you could force someone) but there has to be a system in place where 2 avatars are in a sort of "handshake mode" where they can't doublecross each other half way through the action. -"but you could also do that in real life!", although true, you can also look into someones eyes if they can be trusted, in the real world (not accounting for sociopaths and psychopaths, wich would maybe for arguments sake be 50% of players in DayZ :P) So a handshake or ceasefire would be preferable, if you wanted to trade. Also It would be cool to offer people GPS locations to stashes of "treasure" so that players can maybe bury ammo serverside in the woods. and write down the GPS locations for later use. or for trade. And of course Cars with a sort of "combinationlock" so you can't kill a player for their car if they'd want to enforce a trade system. They wouldn't cary the carcombination lock on a note on their person so it can't be taken from your inventory. My 2 pence