Just learned the hard way about airbag risk in older (1999) car. My daughter's horn and stereo were malfunctioning for about a week. Then one morning, she put the key in the ignition and the airbag blew up in her face. Wear and tear on the clockspring was the culprit, not the bag itself. When your steering wheel has lots of control buttons on it, that's a lot of wires chafing with each turn. Every day.
She has lots of soft tissue damage to face and chest, and corneal abrasions.
We're relieved that it didn't blow while she was driving at 55 (?) on her way to school.