Vehicle never before in collision. front bumper fully contacted with smaller suv, sustaining significant front-end damage. only passenger front airbag deployed, despite there being no passenger in seat (pocketbook weighing only few pounds on the seat, certainly not enough to trigger occupancy sensors). my question is two-fold: why did airbag deploy in empty passenger seat? and more importantly, why did it not deploy in occupied driver seat? is there ever a non-offset front-end collision where force of impact requires only one of two airbags to deploy? *tr