People never think of the bags because we don't see them unless an accident but yes, they can do a lot of damage if not in the right position at time of impact.
"Airbags deploy between 100 and 220 MPH. If you ride with your feet on the dash and you're involved in an accident, the airbag may send your knees through your eye sockets," the Chattanooga Fire Department warned in a Facebook post that has been shared more than 1,600 times.