Because they're afraid that I won't be able to stop my Prius at the next light and plow right into them. It's sweet, it's like a psyhic steam shovel moving those cars out of my way. NO BRAKES fool, move out of my lane NOW!
it's not driving, it's HURTLING down the lane and praying for brake friction. I should adorn the dash with Christian figurines and go to a Catholic car wash, where the water has been blessed by the local Cardinal.