Safe mirror / side mirror

Have you ever been in danger by bicycle or motor cycle coming behind when getting off from the bus or taxicab ?
How much do you check your behind when you get off ? Every year people are getting injured from hitting by motor cycles or bicycles running behind during their getting off from the vehicles. As drivers look back mirrors to check vehicles running behind, passengers lso need safe mirror during their getting off to prevent accident that might happens. If safe mirror is installed inside the car on the level of passengers’ eyes, Passengers would check their behind before getting off naturally and accidents might be prevented.