No one has more personal knowledge of flying than flight attendants. But speaking to industry veterans we were able to uncover 10 lesser-known things you'll definitely want to know. Whether you want more attention from crew members or just want to make sure you don't get kicked off the plane, here are our secrets:

You're not allowed or allowed to open an airplane door while in flight — and if you try, you'll be kicked out Annette Long, a flight attendant with 13 years of experience, explained to Business Insider that while it's impossible to open the door during flight, the attempt will bring you trouble. There have been cases where passengers tried to leave the premises of the plane while it was in the air, and ended up being immobilized, and even arrested upon landing.

Airplanes are nowhere near as clean

Microbiologists have found that serving trays are the least hygienic surface on the plane. Some passengers even change their little ones' diapers on those trays, but they are not thoroughly cleaned after each flight. Flight attendants also do not recommend walking on the plane, especially going to the toilet, in socks.

You can bring your e-cigs, but the plane won't take off with a Samsung Galaxy Note 7 on board

Several items have been outright banned following the events of recent years, and others are still viewed with uncertainty. For example, although a Delta Air Lines flight was delayed because of an e-cigarette, they are theoretically legal on the plane. The batteries of these cigarettes are only dangerous if they are damaged, and you can take them with you when you are not using them. On the other hand, you cannot have a Galaxy Note 7 with you under any circumstances, these devices being banned by the Department of Transport.

You should avoid water

Although some passengers not only consume it, but use it to prepare instant soups, the water on the plane is not exactly clean. Flight attendants don't even drink coffee or tea made with that water. 1 in 8 aircraft were found to be non-compliant with water safety standards, and potentially harmful bacteria were found in 15% aircraft water systems.

If you've found the spot by the emergency exit, keep the curtain drawn

Flight attendants need to know the conditions outside before opening the door, if necessary. If there is fire, deep water or rocky terrain, they need to know, to ensure the safety of the passengers.

You are not allowed to bring your own alcoholic beverages

Some passengers tried to sneak small bottles, but they were detected and always will be detected. Flight attendants need to know how much alcohol you've consumed, so they don't give you more than you're allowed. The longer and higher you fly, the more alcohol will affect your brain.

You might be sitting next to a deceased person…

Because no one officially "dies" during a flight - cabin crew members do not have the authority to declare such a thing. Although you're unlikely to encounter this, even after many years in your career, Quartz – the International Air Transport Association offers some pointers. The person should be moved somewhere as isolated as possible, usually in Class I, and covered with a sheet.

Some flight attendants may use the stun gun

This rule was recently adopted by Korean Air, to more effectively combat the violence caused by some passengers. Even before, crew members could use these items, but only in very extreme, life-and-death situations.

You'd better not abuse the safety lever

In 2014, a China Eastern Airlines passenger wanted to "get off the plane faster" by pulling the lever. This caused a delay of 2 hours and a loss of 16,000 $. In April 2017, the same thing happened on a United Airlines flight, causing a loss of 6-12,000 $s, just for the lever repair.

You are better served if you sit in the back

Although most passengers choose the front seats, in order to disembark quickly and have more chances to grab the menu they want, flight attendants know that the best seats are the ones in the back. There you are next to their workstation and you can get bonuses that, being limited, are less often offered to the passengers in front - and this is so as not to give ideas to all the other passengers who might see the objects along the route to the first seats.

Source: https://www.independent.co.uk/travel/11-insider-facts-most-flight-attendants-know-and-you-probably-don-t-a7590451.html