It turns out Guandolo's therapist asked him to make the list as a writing exercise to "help him realize the damage the affairs had done to his marriage," reports Allen Lengel of ticklethewire.com, citing an anonymous source.
Not the type of list you'd want to leave lying around the office. But somehow, according to the court filing that details the episode, someone found the document and "provided [it] to his superiors." Guandolo's FBI career was over.
He hasn't responded to calls from TPMmuckraker seeking comment.