Maybe there could be two stances you have, aggressive and passive. You can switch between them using up on the D pad. When your aggressive, you scare off passive mobs and mobs of significantly lower levels, mine and break items more slowly, do a bit more damage, and can get locked into combat. When your passive, you break and mine at normal speed, do less than normal damage, and can run away if someone attacks you. To tell the difference you can hold and swing tools differently. That way people won't get locked into unwanted combat, but two warriors can fight fairly without dancing around as much.