On the other hand, what lunatic would put her on the stand now? She's toxic. What a minute -- we are talking about Nifong here -- so, okay, the Defense will have an easy time discrediting her entire testimony after the local lunatic puts her on the stand. Easy peasy. ;-)
The comment Kim says Precious made does explain why she would resort to having the police called to get Precious out of her car. If someone said that to me, I'd want a witness as to exactly what Precious' condition was when she left my car. If this is true, I think Kim deduced correctly that Precious was gearing up to tell every lie under the sun.