I employ the notion of fanhood to object to David Gauthier's Dependency Thesis, according to which, if a disposition is rationally required to adopt, so too are the acts expressing it. I first establish that fanhood is a commitment relevantly similar to a moral commitment. I then argue that, because genuine fanhood characteristically issues in inherently irrational behaviours in the form of ‘luck charms,’ or, superstitious practices fans believe will help their team win, it poses a decisive objection to the Dependency Thesis, thereby eliminating a promising attempt to defeat the moral sceptic.
