Final answer:
Pointing out inconsistencies in someone's statements isn't always a tu quoque fallacy. Tu quoque occurs when someone alleges hypocrisy to undermine an argument, but an individual's past actions do not necessarily negate the validity of their arguments.
Step-by-step explanation:
When you point out that someone says two things that are inconsistent with each other, it's not necessarily an example of a tu quoque fallacy. Tu quoque, a Latin phrase meaning "you too," is a type of ad hominem fallacy that is employed when a person tries to undermine an argument by alleging hypocrisy on the arguer's part. It implies that because the arguer fails to practice what they preach, their argument is invalid. This type of fallacy is often used as a defensive mechanism, such as when a teenager caught smoking points out that her father, who reprimands her, also smoked. However, the daughter's reasoning fails to address the issue at hand: the dangers of smoking. In logical terms, an individual's actions don't necessarily invalidate the truth of the argument they are making. This is distinct from simply pointing out inconsistencies, which may or may not involve charges of hypocrisy.