I don't see a lot of riders perform head checks. It is made clear to us that head checks are vital safety precautions and you can fail your P's test for leaving them out. In a real world situation it can get a lot worse than failing a test, I would hate for something bad to happen to a rider for forgetting to do a head check. I have a question that has been puzzling me. When you have made your way to the front in a safe and legal manner, do you head check when the light turns green and then roll on? What if the car behind you starts to drive whilst you are checking? I'm not sure how to stay safe at the front of the line at the lights.