This should not be mistaken for an equivocation, which it can resemble. An equivocation hinges upon using the same word with different definitions.
"The judge has no interest in the case. A person who displays no interest in something probably won't pay attention. Therefore, the judge probably won't pay attention."
- This is fallacious if in the first sentence, interest means "monetary stake or claim in the matter" and in the second means "the state of wanting to know about the matter."