I recently flew Air Canada from Toronto to Heathrow. I’m glad I didn’t know then about the following incident that occurred in January:
“An air hostess helped land a jet carrying 146 passengers after the co-pilot had an apparent mental breakdown over the Atlantic Ocean, investigators revealed today.
“The UK-bound plane made an emergency diversion to Shannon Airport, in Ireland, last January after the Air Canada flight officer began a ‘rambling and disjointed’ conversation, said an official report.
“Another attendant suffered wrist injuries as the crew forcibly removed the co-pilot from the cockpit controls and restrained him in a seat in the cabin.”–dailymail.co.uk