Man it sounds like your Sensei isn't exactly a class act. He might know what he is doing but if hes allowing people to get injured or giving dirty looks at you for something you can't really help then I honestly suggest you get out of there anyways. I mean, part of martial arts is being able to show restraint, too.
Do you hate ground work because it isn't your strong suit? If that is the case it should drive you to perfect it.
I think its great you are trying to branch out to other martial arts, especially if you want to become an instructor some day (knowledge of any style, even a little bit is great). And it is incredibly unfortunate that everything is heading towards competition, because it drives students to go more 'all out' in their training. That is what causes injuries.
If you don't mind me asking, how old are you? and what do you do as far as conditioning and endurance training?
Edited by Scottie2Hottie, 19 January 2011 - 02:17 PM.