What are you smoking? - - I doubt that has ever happened.
There were reports that this may have happened during the 9/11 hijackings.
The investigations found that uniforms and IDs had been stolen.
Well, Mr. editor, numerous news reports have said that it did happen September 11.
There was a fake "pilot" in the cockpit of at least one of the planes that crashed. There were Middle Eastern guest "pilots" on at least 12 planes that were grounded. There have been no reports about whether these men were detained when the planes went back to the gates, but I doubt that they were because at that point no one had connected the attacks to the Middle East.
There have been numerous reports of stolen airline pilot uniforms (Muhammed Atta left two from Lufthansa in his baggage that never made it on the plane)and falsified "pilot licenses" in the possession of the terrorists.
Let me ask you, if faking the persona of an airline pilot to gain admittance to the cockpit was not part of the plot -- why did they need to steal the uniforms, why were Middle Eastern men sitting in those courtesy seats, and why did they have to falsify pilot's licenses?
Do you still doubt that this happened?