I FLIPPED IN MY 2004 MERCURY MOUNTAINEER AND HUNG UPSIDE DOWN FOR AN HOUR TILL SOMEONE CAME BY BECAUSE MY SEAT BELT WOULD NOT RELEASE. THE EMT'S COULD NOT EVEN GET IT TO RELEASE SO THEY HAD TO CUT IT OFF OF ME. I THE THING RELEASED I COULD HAVE CRAWLED OUT THE WINDOW AND WOULD NOT HAVE HAD TO HAVE $12,000.00 DAMAGE TO MY CAR BECAUSE THEY WOULD NOT LET ME CRAWL OUT AND HAD TO USE THE JAWS OF LIFE TO GET ME AND THE BOARD OUT. I WAS TOLD THAT THIS IS HOW THEY ARE DESIGNED AND I FEEL THIS IS NOT A GOOD THING. HAD I LANDED IN WATER OR CAUGHT ON FIRE I WOULD HAVE BEEN DEAD BEFORE I WAS FOUND. *NM