SixDelta all very well, but it sounds to me that a hijacking or similar situation is being confused with a bomb warning. I am also at a loss to understand why so many professional pilots seem willing to abdicate their responsibilities in circumstances where the justification for their actions might be rather difficult to sustain ex poste. The obvious questions, after the event, would start with "on what basis did you decide that you no longer had the responsibilities with which you started the flight.... ?"
I am also sure you do not mean to imply that the mere presence of "friendly" fighter aircraft should be enough to cause you to lose your wits. And surely a "visually very directive" fighter is in R/T contact with somebody that can be communicated with?