Here are some of the most ridiculous (genuine) complaints made by holidaymakers to their travel agent, courtesy of research by the flight booking website justtheflight.co.uk and cruise booking website bonvoyage.uk.

"We could not enjoy the tour as our guide was too ugly. You can't be expected to admire a beautiful view when you're staring at a face like his."

‘The Grand Canyon? It's nothing special’ – meet the world's grumpiest travellers