In an emergency situation, what should you NOT do?

A It is not important how you brake in an emergency situation.

explanation

If possible, avoid using the brakes until your speed has dropped to about 20 mph. Then brake very gently to avoid skidding on a loose surface. You should brake in a way that will keep your vehicle in a straight line and allow you to turn if it becomes necessary. You can use the "controlled braking" method or the "stab braking" method. [California Commercial Driver Handbook]