I had a great flight LHR-Vancouver in 1994, in a Air Canada 744. On a whim I asked a FA if I could go up to the flight deck, and she took me up there. The captain asked what I did for a living, so I told them about my genetic manipulation of viruses. They thought it sounded exciting (it's not, it's boring), much more so than flying 744s. I spent a couple of hours chatting to these guys. The joys of flight pre-9/11.