X17 XCLUSIVE - Source Calls Brit Bodyguard Story "Lies"

An X17 source -- someone else employed by Brit during the time former bodyguard Tony Barretto was employed, is telling us the following in response to Tony's interviews with News of the World and the Today show:

Tony's only ever seen Britney eight times - after working with her for a short time, he was fired for being lazy, inefficient, and slow. Our source says neither Britney or the other bodyguards were happy with him because he used to speak badly about other people, including other celebs he claimed to know.

Our source says Tony sent a letter to Britney after being fired, begging for his job back; he send subsequent letters accusing other members of Britney' security team of various things; and then finally, correspondence stating that he witness lots of questionable activity during the time he worked for Britney and that he would go public with it unless ...

Apparently Tony deliberately dodged signing a non-disclosure agreement (required of all Brit's employees) for weeks after he was hired but did finally sign it, according to our source.

Our source questions why, if Tony were truly concerned with the well-being of Britney's children and honestly thought Brit were a danger to her kids, he would have waiting 5 months to tell anyone about what he says he witnessed? And why, once he came out, he'd sell his story if he's doing it for such altruistic reasons?

Now, back to Friday ...
Check out the scene at the end of last week, as Britney went to visit her new attorney on Friday to get him up-to-speed on the past 4 or 5 years of her life with and without Kevin, which was highly emotional for Queen B ...