Yes, it is possible. But soon as you log in, it takes like 0.2 sec to disconnect player. Since it only disconnects 1 player, other will stay online. In that case, its perfect to dupe. Thats what i did in dodian. Open 3 clients, mass logg on with 2 clients at same time with same user, and kill one of them with second account. Account you attacker first, will log and die, while other stays online, and dupes all items character had. Thats main reason why people should slow down logging in. Just make server to check logged in characters, and connect like 2 or 3 sec after you click log in.