"All-in-all we were on the flight for an hour and 55 minutes."

The fair is on display alongside exhibits detailing its surreal curation process.

Mr Nixon, Susannah's surgeon, said people have six major saliva glands and Susannah's tumour was on the largest one under the ear.

They can trace their family's involvement back to 1937, when their grandmother was on the founding committee.

"The responsibility is on me, not Carlos," he said.