"This recipe for carrot cake calls for fresh carrots. But I don't have any carrots in the kitchen now. I do have garlic, though, so I'll use that. Carrots are vegetables, and so is garlic. Therefore, if carrots work in this recipe, so should garlic" commits the fallacy of
◦ hasty generalization
◦ weak analogy
◦ false cause
◦ appeal to ignorance
◦ appeal to unqualified authority