Worst case would be a complete engine failure on a busy 5 lane highway. When you break down some fucktard ricer slams into the back of your car, sending you careening back into trafic, side swiping a van full of daycare children, which then cuts directly underneath a semi, decapatating them all and jacknifing the semi, causing him to careen across 5 lanes smashing car after car, then falling over and skidding on its side. Whereby dumping its load of high pressure cylinders, one of which pops and flies up into the air, smacking an airliner direcly in the fuel tank, causing it burst into flames and crash into a stadium full of spectators, this happening, of course, on superbowl sunday.