There was an old true story of a USAir F-100 at the #1 take off position at LGA however they were sitting a ways back from the hold short line. Behind them was an American MD80 who came on the tower frequency and said, "Tower is that USAir F100 #1 for take off?". Tower responded, "Yes". American said, "Well could you tell him to move up. He needs to move up to the hold short line". A few seconds later the F100 opened up it's rear air brake (on the rear tip of the empenage) and someone keyed the mike and made a long farting noise. A few moments later the rear air brake stowed.