So my son has had 4 lessons with the local AA instructor. The first 3 lessons went okay but it seemed like the driving instructor might have got out of bed on the wrong side on this last 4th session. My son started to slow down at an amber traffic light which was around 4-5 car lengths away (30mph limit he said he was doing around 25mph). The instructor said to carry on going, however given the conditions were bright, sunny, not raining, he had checked his rear view mirror noting a car was around 2 car lengths behind him, so decided to stop due to it being safe to do so without aggressive breaking needed, in his view. He then got berated by the instructor asking him what the hell he was doing? And why didn't he go through the light as directed? To which my son replied, there was enough distance for me to stop safely given. The instructor then accused him of not checking his mirrors before breaking asking what car and how far away was the car behind, to which my son replied it is a BMW and around 2 cars behind. This seemed to infuriate the instructor who then continued to argue with my son saying, "I forgot you have much more experience than I do in terms of driving." "If you're that experienced why haven't you passed your test yet?" which is blatantly insulting my son. The Instructor clearly knew he was totally unprofessional as he then tried to make a few jokes on the way home. I find this totally unacceptable and completely unprofessional from a supposedly well trusted brand name.