Act shitty, get shat on. Simple as.

This is how humanity used to deal with malicious people in the tribe.

When they need help, not lifting a finger. One day when they are out hunting, the hunting party will deliberately lose them, leaving them alone in the wilderness. When the offender gets back to where the tribe was camping, everyone has already left. They are alone. For the rest of their lives. Usually very short lives, because humans generally are a social species and are not good at living alone.