My tone in asking question is neither criticizing, nor begging. The way I ask question is not, "well, my dumb head doesn't get how this will benefit me, could you be more descriptive?" That the fault is in me. And it is also not, "I doubt what you are saying is right b/c of blah" that fault is in him. I simply ask question in a calm and pleasant manner, "why not?" For instance, if he instructs us to not do something, if I ask simply why not, he will say b/c it is tradition and that's just the way it is, but if I persist, then he would become rude.
True ex. there was an instrument and he says here is how you grip it, I said that I feel more comfortable in the other grip. But he said that he still wants me to grip it that way, but when I asked why, he is said it is the capeoira tradition. But when I said that can I still hold it that way, b/c that is really weird for me and it is a minor diff. in the finger, no one will notice. He said you can get your own instrument and then you can do it.(he is actually not a certified teacher, but his teacher gave him permit to teach us)
(The past example I gave you was a made up one, just give you a feel about how he is, this is what actually happened)
I understand that if the teacher sometimes teaches us something wrong, we should tell him that in privacy, not in public b/c it might affect his reputation as a teacher to the students. But I try to avoid those methods, but he is still rude to me.(I don't have this problem with other teachers, they do annoy me a lot though with the answer:"I don't know". Lucky for me I got you guys!
In my opinion, he has an ego problem... my english teacher was telling me a lot of professors in college have that, however, so far, he is the only one, and he is not even a professor.