its bad because YOUR SUPPOSE TO HAVE BOTH HANDS ION THE WHEEL AND CONCENTRATING ON THE ROAD CUZ THERE ARE A LOT OF FOLKS DRIVING THAT SHOULDNT BE...YOU EAT YOU DIE...
um if you hit a bump and choke or if you are the one driving then you could be distracted and crash (its gotta be pretty dammn good stuff) but thats worst case senario i dont see how it could be that bad