A False Reassurance works because the speaker is being vague and non-specific enough to pull the wool over someone's eyes. A Suspiciously Specific Denial, on the other hand, fails because the speaker is Saying Too Much. This may be unintentional, such as when the speaker is panicked, a Bad Liar, or perhaps just a little stupid. Often used to establish that you're Most Definitely Not a Villain. When the speaker is assumed to be telling the truth, a listener might suspect this if the denial was expected to be more general. See also: Could Say It, But....