Do you have any great "safety equipment " ideas or experiences to share?

I’m looking for stories that will inspire us to use safety equipment such as seat belts, bicycle or motorcycle helmets, child safety devices, or any other life-or-health-saving equipment you can name, (perhaps you can point us to something we haven’t thought about).

I’m not really looking for quips about how brave you are not to use the aforementioned equipment, or what a waste of time it might be. Please offer us something constructive or really helpful.

I’ll share mine after I’ve heard a few of yours.