Pulling the Green Apple

"Pulling the Green Apple" Meaning - Ejection seats are fitted with an emergency oxygen bottle who's primary job is to keep the pilot alive at altitude, where there is less oxygen, should they have to eject. If the pilot feels the effects of hypoxia, as this pilot describes, they can pull a device, which looks like a little green apple, to release the ten minute supply of 100% oxygen. This should enable them to think properly again and resolve the situation, in this case get lower quickly and return to base.