When his car was being searched by police on entry to the Palace of Holyroodhouse in Edinburgh in 2019, Davidson involuntarily yelled: 'A bomb! I've got a f***ing bomb!' - and then when meeting Elizabeth II herself, he shouted: 'F*** the Queen!'
He later recalled: 'It was absolutely awful. There was a military band playing and I thought some of the guys were going to choke on their instruments, they were trying so hard not to laugh.
'But the Queen never batted an eyelid. She was just so cool and calm. She was very lovely and asked about the documentaries and congratulated me on doing so well.
'She's probably had that slur thrown at her before, although maybe not in her own palace.'
Having returned to his seat, he then responded to another honours recipient being announced 'for services to water-skiing', that he exclaimed: 'F***ing water-skiing!' - before excusing himself and moving away from the ceremony to decompress.