There was the story of Neil Williams ( then Jetstream TP) on "Fred's Sheds" stand at Farnborough.
A couple of young ladies were chatting to him and got round to asking him what he did at HP. He admitted to being a pilot and when pressed finally confessed to being the CTP.
At which point a couple of guys had overheard this remark as they were passing by,
Over his shoulder one called back:
"Oh , Hi Neil!"
"What are we today then , Chief Test Pilot or Nuclear Submarine Captain?"