A Solution!
Barit 1, you've got the answer.
In fact, the over-60 doesn't even need to fly, he'll be far too decrepid for that.
He (or she, sorry Ma'am) just needs to be tied to the jump seat to mutter "Don't forget Murphy" every 15 minutes between start-up and shut down.
This is only temporary. In around 2020 he'll be replaced by the dog put on the flight deck to bite the systems monitor (ex-Pilot, perhaps? Reborn Flight Engineer?) if he/she tries to take control from the automatics.
When Murphy once stopped my Prentice engine in cloud over the Italian mountains (Naples - Brindisi) because both mags got damp, in his haste to leave with the only umbrella he dropped a card that said "Sooner or later someone will think that it's possible to Murphy-proof a system. That's the moment, Murph' ole boy, to go for it".
Congratulations on the point you were really making...exactly right!