If you have a green light and a pedestrian is violating the rules of the road by crossing against the red light, warn the pedestrian by sounding your horn. Of course, you must do everything possible to avoid hitting the pedestrian. If the pedestrian still doesn't stop even after you sound your horn, you must stop for the pedestrian.
If you plan to turn beyond an intersection, do not signal until you are in the intersection (drivers in the intersection may pull into your path). If you signal before you enter the intersection,. another driver may think that you plan to turn at the intersection.
Arizona law requires you to stop at the scene of an accident in which you were involved. Failure to do even so even if the accident involved only minor injuries is considered a class 5 felony, punishable by nine months to two years in prison and license revocation for three years not including the time you're in prison. Also, six points will be added to your driving record for failing to stop the accident.
Worn or bald tires can increase your stopping distance and make turning more difficult when the road is wet. Unbalanced tires or low tire pressures can cause faster tire wear and reduced fuel economy and make the vehicle harder to steer and stop.