Mile High Club
This one is not from the class but a story about my son and his limited understanding of the world.
TC went to Cyprus this year on holiday with his father. During the flight he went to the toilet . Returning to his seat TC told his father in a less than quiet voice that that was him, he was a member of the 'mile high club'. His father, mortified hushed him up and asked what Tony meant. Tony had understood the phrase mile high club to mean going to the toilet in a aeroplane.