Oh how I wish I could be a BA passenger on a Ryanair aircraft. What a treat for passengers and crew! Pax would discover Ryanair seats are OK and have one excellent feature. They cannot be reclined! Who needs an inch or two to recline on short haul flights anyway? Ryanair crew will discover serving free snacks keeps pax quiet and happy. Ryanair crew may also discovere a cabin free on unnecessary announcements can be pleasant. I suspect some crew may find having to deliver BA standards may be fun and less tiring than forever having to tout the Ryanair stuff for their commission.
In decades of being in love with aviation, I never thought I'd see the day a Ryanair aircraft would operate a British Airways flight. What a lark. I would happily pay a decent fare just for the fun of such a flight!