When changing lanes, everyone has to look in the mirror and turn their head. That's simply how you make sure that no one is in your blind spot.

People should not be blowing past you, you need to learn to keep up with traffic. They are not going to just slam into you. Listen to your instructor, maybe ask to practice on less busy roads.

Farm safety? Home safety? Firearm safety? Industrial safety? Public safety? Driving safety? Water safety? Food safety? The list goes on and on.

What type of safety class? Be specific.