I WAS INVOLVED IN A REAR END COLLISION (MY CAR BEING THE RECIPIENT OF THE IMPACT) THE DRIVER'S SEAT COLLAPSED AND WAS PULLED FROM THE FLOOR BOARD OF THE CAR. I HAVE BEEN TOLD THAT THIS IS A DAGEROUS SITUATION SINCE I COULD HAVE SLIPPED FROM UNDER THE SEATBELT AND COULD HAVE BEEN THROWN THROUGH THE REAR WINDOW. LUCKILY THE VEHICLE THAT HIT ME WAS ONLY GOING ABOUT 50 MPH AND WAS A CAR AND NOT A TRUCK