For some people flying is no easy task. They can be told all about how statistically travelling by aircraft is safer than driving, but that's never usually enough to calm the nerves.
The fact of the matter is that cars won't just fall out of the sky, nor are they likely to plummet into the side of mountains, and, if the magic of cinema is to be believed, they'll very rarely be infested with snakes.
One thing that does help is the glory of the airport bar. However, if you look out of your window and see a fella duct taping one of the plane's engines, even alcohol might not be able to calm you.
A recent clip was filmed prior to take off at Amsterdam's Schiphol Airport on Tuesday, after the pilot of the flight to Berlin announced there'd be a short delay as an engine was quickly fixed.
A passenger looked out of his window to see an easyJet engineer removing tape around the shell of the engine, pour alcohol over it to clean it, then replace the tape.
"It really seems that the tape was there for mechanical reasons and not just for the looks," the person filming said.
Easyjet told MailOnline: "EasyJet occasionally uses this high-speed metallic tape, which is always used in accordance with the approved aircraft manuals and repair processes, and in no way compromises the safety of the aircraft.
"The safety and wellbeing of passengers and crew is always easyJet's priority."
Many things like this seem to be recorded by flyers, as another recent viral clip showed moment he discovered that a window frame had come loose, while thousands of feet in the air.
I love the way he pats in into place at the end. Credit: Viral Hog
In the clip, you can see the man pull the entire window frame loose from the panel. He uploaded the clip with the title: "Should I be concerned?," as well as writing: "It was a low-cost airline (30 dollars). The window was totally off its frame. I found it funny and recorded the video with my cellphone."
And others clearly felt the same with commenters on the clip telling him that he should have alerted staff.
However, according to experts, the poster didn't need to be concerned.
He said: "It's just a superficial liner that helps protect the actual window. I admit that it looks embarrassing and unprofessional, but there's no safety risk."
This was seconded by the chief executive of the UK Flight Safety Committee Dai Whittingham, who told the paper: "This is definitely not a safety concern, it is simply a piece of loose cabin trim. The internal window is there to protect the main glass from scratches and it cuts down some of the internal noise as well as providing an element of thermal insulation.
"The external window is fixed to the hull and sealed with a gasket so that the interior of the aircraft can be pressurised, so this loose trim will have had no effect at all apart from not looking particularly neat and tidy."