Airbags For the Elderly

Prop, a Japanese company, has come up with a novel way of protecting the elderly from sudden slips and falls: airbags. The airbags inflate with 15 litres of compressed air in 0.1 seconds if an electric sensor detects a sudden movement towards the ground. However, the airbags only work if you fall backwards, so pushing grandma down the stairs for the inheritance should still work.