We argue that even if an agent’s initial responsibilities are not very demanding, it can become permissible to burden her with significant costs if she culpably fails to discharge those responsibilities. In particular, we defend the claim that even if our responsibilities to assist others are not initially very demanding, our failure to live up to them can make us liable to possibly burdensome enforcement costs. Christian Barry and Gerhard Øverland () disagree. They claim that other things equal, fewer costs may be imposed on an agent if she culpably fails to live up to her assistance-based responsibilities as opposed to her responsibilities not to contribute towards harm. Their thought is that our responsibilities to assist others are less...