 Mill may not have a consistent view about offense. It is instructive in this context to consider briefly the views of Joel Feinberg, who sees himself articulating a Millian position in his important four-volume work Moral Limits of the Criminal Law (1984–88). Feinberg understands his own defense of Millian principles as involving a modified Millian categorical approach. His main modification of Millian principles is to permit some forms of offense regulation. In Offense to Others (1985), Feinberg begins by focusing on nuisance. Many offensive things are nuisances; they cause passing disagreeable mental states or sensations. But even if many nuisances are just the price one has to pay to live in a free society, it is common for the law to regulate nuisance. Feinberg thinks that some nuisances—especially public nuisances—can justify regulation. To determine when offense (nuisance) regulation is permissible and when it is not, Feinberg employs a balancing test in which we must weigh the seriousness of the offense (e.g., its magnitude and avoidability) against the importance of the agent’s interests being regulated (e.g., their importance and the existence of alternative avenues of expression).