Reasons are of the wrong kind if, despite appearing of the right kind, are not able to justify nor to motivate the formation of a mental attitude. Initially, this problem was thought to apply only within the theoretical realm of reason, but Kavka's Toxin Puzzle showed that reasons of the wrong kind are also found in the practical realm. The aim of this paper is to analyze the scope of this problem, in order to determine the kind of reasons it (...) affects. I will examine two possible solutions to this problem, and I will argue that the most promising solution, proposed by Hieronymi, is based on a conception of reasons and attitudes that is too narrow. (shrink)