We’ve all been on airplanes and heard the flight attendant tell us that “in case of an emergency, an oxygen mask will drop down from the ceiling. Put your mask on first, before assisting others”. This sentence holds a valuable...
Put Your Oxygen Mask on First
We’ve all been on airplanes and heard the flight attendant tell us that “in case of an emergency, an oxygen mask will drop down from the ceiling. Put your mask on first, before assisting others”. This sentence holds a valuable...