text: Secondly, people who use a cell phone in the car can drive erratically, which puts others at risk. They may fail to give the proper signals, miss road signs, change lanes abruptly or respond slowly to hazards. Erratic driving patterns can be extremely dangerous to everyone else on the road, including other drivers, pedestrians, and animals. Also, motorist involved in a stressful or emotional phone conversation may exhibit aggressive behavior while they drive, such as road rage. This may cause the erratic driving to worsen and this greatly increases the chance of causing an accident. So, if checking your phone is going to cause you to get mad and drive like you've got no sense and possibly kill someone, then there's no need in even picking it up.