um NO. Seriously hide your stuff better. This is survival not pokemon. You can already have a trading post. Just get some guys together and stand In a town and protect your goods. In a real apoc you don't think your stuff will get jacked? You can just put your items in the top floor of a building and leave em. You and your fellow "traders" stay on the bottom and wheel and deal (or more likely firefight). You don't want them stolen stay on top of them. I already tried the trading aspect of this with hoards of food and drink... til a grenade took me and my 4 others out. It can be done but you may want a huge army (like any apoc movie has shown) before implementing. But don't make lockers so no one else can get your beans if you aren't doing your job and protecting it.