Do not underestimate the effects of ostracizism: if Mises and Friedman boycotted the logs that Ben sells until the gate issue is resolved and also told people they will have reservations about trading with people who use Ben's logs, Ben's life becomes increasingly hard to manage while tolling the river because he will lose business and acceptance in the town. Also the concept of DROs or dispute resolution organizations is one that is just recently beginning to be explored.