 Another way of challenging the intellectualist claim that knowledge-how is a species of knowledge-that is to question whether knowledge-how can be Gettiered. If knowledge-how survives Gettierization, that would be evidence that knowledge-how is not a species of knowledge-that, on the assumption that Gettiered justified true belief cannot constitute propositional knowledge (Gettier 1963). Stanley &amp; Williamson (2001) argue that knowledge-how cannot be Gettiered. However, Cath (2011) responds by proposing the Lucky Light Bulb case, where Charlie wants to learn how to change a lightbulb, but he knows almost nothing about light fixtures or bulbs. Charlie consults The Idiot’s Guide to Everyday Jobs. Inside, he finds an accurate set of instructions describing the shape of a light fixture and bulb, and the way to change a bulb. Charlie grasps these instructions perfectly. And so there is a way such that Charlie now believes truly that that way is a way for him to change a light bulb, namely, the way described in the book. However, unbeknownst to Charlie, he is extremely lucky to have read these instructions, for the disgruntled author of The Idiot’s Guide filled her book with otherwise misleading instructions. Cath (2011) argues that intuitively Charlie still knows how to fix the light bulb, despite his belief being Gettiered (cf. also Poston 2009: 744).