While I appreciate the fact that you want to be safe and not talk on your cell phone while driving, I hardly think that SLAMMING on the brakes and swerving over to the shoulder to answer your phone is any safer than talking and driving. In fact, I'd have to say that it highly INCREASES your chances of me ramming my battle-tank station wagon up your pansy hybrid butt! Dude, get a Blue Tooth, or consider administering the brakes slowly, and then, ohmygawdwhataconcept, SIGNALING, while you calmly pull over to the shoulder.
P.S. No offence to your car. It's actually the reason I didn't lay on the horn and give you the finger - I figure driving a hybrid at least gets you SOME credit. But STILL....weaksauce.