You mean like the mother who was trying to get money out of all those celebrities? Oh, wait, she didn't. At least, not according to the celebritieson the stand. Or maybe you're talking about her big lie about being manhandled at JC Penney's? You know, her husband supposedly did all those bruises? Oh, wait again--her husband was in jail when that happened, so maybe she was telling the truth.
Then again, some people would rather believe the defense spin, regardless of the FACTS.
The mother did invoke her 5th Amendment right against self-incrimination when asked about welfare fraud. That sort of thing lowers a witness's credibility in a jury's eyes.