I have no doubt the instructor is good at what he teaches, but as I said before, ignore his advice on using high kicks and competition fighting techniques outside of the training hall.
You may have fairly quick/poweful kicks, so do I, but all it takes is for them to catch your leg if you aim high (not that hard to do) and it's game over.
As you said, low kicks are what you want. I personally have used a low roundhouse to the side of the knee to end an altercation in one go.
When I said verbally, I mean calmly dealing with a situation - for example if you accidentally bumped in to a thug and spilled his drink, open hands up in front of you (passive / submissive stance which can be used as a fighting stance), "Really sorry mate, here let me buy you a new one". That way you've diffused the situation before it's even had chance to develop.
Sure, some people are out looking for a fight, but with them you have to massaage their ego by being the submissive one, saying how it's your fault and you don't want trouble. If you're sure they're going to kick off and not accept your apology, then half way through saying "Look mate, I don't want any tr...", you get your first shot in and make it count.
(Obviously all the advice I'm giving here are my own personal views, based on my experiences and training. In no way am I reccomending that anybody else tries it nor am I trying to inflate my own ego by making out I'm some sort of martial arts master)
i swear we've been to the same classes on aggression control. you mentioned the open handed slap to the side of the head as well yeah?

