Young Jag pilot (YJP) in the late 70s at the Strike Base of the time: detailed to lead a pair of Jags on a demonstration scramble (taxi-through) from a single HAS to impress visiting senior officers from other NATO nations accompanied by Harry the Staish (HTS). These 2 Jags were always loaded at weekends with 4 x CBU in case the balloon went up etc ...
With 2 Jags in a HAS the front one had to start its right-hand engine and move out of the HAS before No 2 could start his engines in the HAS.
YJP is briefed by flt cdr, one Joe W, to make it snappy, move out of the HAS quickly and let No 2 start without delay. YJP gets quickly into Jag (as it's only a taxi-through) and might have skimped on his checks. He starts RH engine quickly and moves snappily out of HAS. As he does so, he sees HTS turn away from the scene and spend a minute or 2 looking the other way ...
Both Jags manage to taxi and "hide" on the southern parallel while dignitaries and HTS finish their tour and head off in motorcade. On return to the Sqn, YJP is told by flt cdr that it was a good snappy exit, but that a ladder behind his Jag had risen on the jet blast and hovered near the tail of the other Jag, crashing to the ground behind it. Couldn't understand how that had happened, but no damage, so no UI. Phew!
YJP accosted by one of the linies in the Sqn the next day:
"Sir, that taxi-through yesterday?" "Yes, what about it?" "I noticed that your engine had a sort of blue flame coming out of the back!" "Ah! Thanks! Perhaps we had better not mention that again."
The Jag had part-throttle reheat, y'see. The switch was meant to be off, normally, something you checked before climbing aboard ... under normal circumstances, anyway.