We take for granted today that an airbag supplemented with a safety belt can greatly reduce your odds of being harmed in a car accident. But that is only the case if your airbag functions properly. During an accident, an airbag must deploy in less than a second. 

Car repair company Aylesbury Panelcraft Ltd demonstrates with a falling watermelon the chilling results that can occur if your airbag launches just one hundredth of a second late. Not good.

 This video is actually from 2013, but has only gone viral now with over 100,000 new views!