April 7, 2016: A first time flyer, after boarding a China Southern aircraft, needed a bathroom prior to take off — and mistakenly opened the rear aircraft exit door — instead of the bathroom door — heard a loud hissing noise and thankfully stepped back as the aircraft escape slide was activated. The flight was delayed over 2 hours while a maintenance crews put things back together. Oops — wrong door. The passenger commented, “well the lines were long in the terminal”!!!!