Ok, this is a strong statement but let me explain it little more. I have been teaching and training my whole life and one of the biggest lessons I have learnt is that I can choose the people I train or teach! Today I am quite strict about how I take students into my school. If I dont like your attitude or you are causing too many problems to other students (or me) then I have to ask you to find another school to train at. (Last time that happened was around 6 month ago) Now there is of course a huge difference between children and adults. I am very open minded with kids and give them much more freedom. Especially if they are younger kids then you really have to have some patience. With adults I follow some basic rules, here are some of them: 1. If you try to hurt your training partners on purpose then you will be kicked out very fast! (Especially if we train in Hapkido!) 2. If you cant train with children without complaining and you dont help them. This is what I call the idiot test, if you are a smart, open minded person then you understand that training with kids actually might be a good thing for you. Example: you have to maintain a high level of control with your techniques all the time, you have to be ready because that kid might do some unpredictable moves or doesnt understand the exercise perfectly yet. 3. If your ego is too big and you are not ready to listen to others then you have to go. I often meet people who are behaving well with me but when there is another instructor (who has less experience than I have ) then those students wont listen to him or try to do the things he says. 4. If you are an *******. (Pardon my bad language but I couldnt find any better word to describe it) This is obvious and I dont need to go any further with this. 5. If you are too negative, pitching and moaning all the time etc. Nowadays I have less and less patience with this. I dont waste your time or my time; it will just take too much energy from me! I understand that there will be a time when the student will feel this way and thats OK but if it continues for too long then I have to do something about it. So my conclusion is very simple I like to have an environment that helps and supports students. I dont need people who are bringing things down and I prefer keeping things positive and simple! These principles have helped me a lot in the last 25 years and my only regret is that I didnt start to use them earlier! Any comments? /Markku P. Markku Parviainen has studied Taekwondo (WTF) over 30 years and was member of Finnish national team for 10 years. He has a Coaching degree from the Finnish sport institute and has coached the Finnish junior national team. He competed in over 100 tournaments and his best results were a Bronze medal in the European championship and numerous national and Nordic titles. His students have received medals in World championships and European championship games. Currently he lives with his family in Sweden and runs his Taekwondo School in the city of Gothenbourg.