This can happen anytime in any flight. Everyone, please take this seriously. Whenever the oxygen masks are dropping and there is an instruction to don the mask, do this on yourself immediately. Make sure you PULL the mask as oxygen flow can only be activated by pulling the mask. Don't be panic if the bag connected to the mask is not inflating. Oxygen still flows even the bag is not inflating. Then, fasten your seat belts. Assist the others ONLY AFTER YOU HAVE COMPLETED THE ABOVE. After you have donned the mask, try to wake up those sleeping by throwing things like magazines and alert them to do the same.
Your consciousness can be lost within a minute without oxygen. Lacking of oxygen causes permanent brain damages.
Securing yourself is vital because anything can be sucked outside of the plane if there are severe structural damages in the aircraft.
Always FOLLOW THE INSTRUCTIONS and NEVER attempt to be a hero. STAY CALM AS ALL TIMES
