But somewhere in between boarding a flight and landing, it seems some travellers have forgotten that they're sharing a cabin with a hundred or so other people. Gone are the days when the biggest in-flight grievances were crying babies, overly reclined seats and armrest hoggers. Instead, there's a new wave of irritating habits creeping into the cabin. For many, though, it's not just the filming that's the problem – it's ending up in someone else's holiday content. 'Comfort is important, especially on longer journeys, but it should never come at the expense of those around you.'