BBC:

For 21 years, the king of the Netherlands has flown twice a month as co-pilot while his passengers were in the dark, he has told a Dutch newspaper.

He told De Telegraaf that he never used his name when addressing passengers and was rarely recognised in uniform and wearing his KLM cap. However, he admitted that some passengers had recognised his voice.

Can you imagine sitting on a plane and hearing the pilot over the intercom, “Welcome to the flight, ladies and gentlemen…” And thinking to yourself, “Huh – that sounds like….naw…couldn’t be!”