Which logical fallacy is used in the text?
Mr. Harmon's class is so boring! Why are all literature classes so dull?

 - hasty generalization: a broad claim based on too few observations
 - slippery slope fallacy: the false assumption that a small first step will lead to extreme consequences
 - false causation: the assumption that because two things happened together, one caused the other
The text argues that a single boring class indicates that all classes on the same topic are dull. However, this isn't necessarily true. This illustrates a type of logical fallacy known as a hasty generalization.