20 Things You Should Never Do on an Airplane

Don’t booze too much

Speaking of champagne, as tempting as it may be to knock back a glass or two to help you ease into the flight, drinking too much alcohol can turn into a nightmare. Onboard pressure makes you react to the effects of alcohol much faster, so you may feel (and act) much drunker after two glasses in the air than you would after a bottle on the ground.