I'm developing a plugin similar to AuthMe, blocking every action until a player logs in. It's almost complete, but I'm not sure if I've blocked every action. I'm worried about the inventory. AuthMe stores the inventory and removes it when a player joins, then returns it when he logs in or leaves. This can cause some problems, like entire inventories being lost. I want to block all ways to alter the inventory. Is this possible, or is there a way to remove an item from the inv without the server approving it? Also, is it possible to prevent moving items around?