Never inflate it inside an airplane either! >Many passengers died because they inflated their life jackets in the cabin, causing them to be trapped inside by t

Never inflate it inside an airplane either! >Many passengers died because they inflated their life jackets in the cabin, causing them to be trapped inside by the rising water. This led to future notices about not inflating the vests before exiting the plane. [0] https://en.wikipedia.org/wiki/Ethiopian_Airlines_Flight_961 https://en.wikipedia.org/wiki/Ethiopian_Airlines_Flight_961