Do you text while you're driving?
I try not to do it while the car is moving, but I'm definitely guilty of doing so occasionally, and totally whip out my phone to read a message or send one when I'm at red lights.
I refuse to text my fiance if I know that he is driving, and if he texts me when I know he's driving, I call him right away like "IF THIS CONVERSATION IS WORTH YOUR LIFE WE CAN HAVE IT OUT LOUD"