I think the thing to do is to expect the unexpected. It could be your airbags deploying or it could be a tire blowing out randomly when your in the middle of an 80mph high speed pass. Theres really nothing that you can do to prevent those little surprises when you drive other than know exactly how you will react when you are presented with that kind of an emergency.

Since you can't predict the future changing your car won't help you much. Imagine disconnecting your airbag only to get into a high energy crash with a large truck where the airbag would have helped if it went off.

While Im glad my 126 does not have airbags because I would question their operation or unintended operation I would not disable them if the car was equipped with them. An unpleasant surprise is much more easy to deal with than being killed or injured more in an accident where the airbag would have provided benefit.