At the end of the day there is nothing an OJTI likes more than a mouthy student. I am not suggesting the mr garibaldi is a mouthy student, he has a long way to go before he gets to that stage, but don't take on your OJTI, he knows way more than you despite what you might think. Keep your ears open and your mouth closed and if you make it, you can adopt your 'I don't take sh*t from anyone' attitude. Good luck because with that attitude you will need it.