There is a lady here in San Diego that probably does not know a serration from a libation, but is thankful, none the less, that my Flash II has them. Last summer, just about nightfall, I was outside in the yard when I heard a horrendous crash on the freeway. My home fronts right on a major N/S freeway. I immediately told the wife to call 911 and ran to the retaining wall the check out what may have happened. It was a multi-car pile up and one of the vehicles was on its side. I jumped over the wall and ran to the overturned car. The woman driver was hanging by her seatbelt, darn near strangling. All I had was my Flash II, so I just grabbed the shoulder harness and with two saw motions, had her free. Another person and myself dragged her out of the car and got her out of the way. I know, I should not have moved her, but considering the situation, the further away from the cars and freeway she was, the safer she would be until professional help arrived. So I vote very strongly for serrations. And most firemen and police that I have spoken with also agree. A serrated blade will definitely make quick work of most seat belt harness assemblies.