I seem to remember Egon was the nav on one of the Cottesmore wheels-up take-offs. He said he alternated languages to capture the full range of swear-words as they whistled down the runway.
When parked on the runway he thought it was amusing that they went to the effort to bring steps to the aircraft. When I asked him what he did afterwards he said he went to pick up a new car, which didn't impress the med centre who stayed open awaiting his return for a post-accident check-up.