Wow! Give it up already. Tuck your tail between your legs and apologize to your manager, even if you are right. You are going to make a lot of enemies in your shop if you continue on your path of know it all. You're only a 1st year apprentice???? Lol every shop has someone like you and no one can stand them. License techs won't teach you shit if you're going to question everything they do that you don't agree with. I know I won't teach someone like you or even let you watch me work. Just take out my garbage and sweep my floor. I mean this reply in this thread in a helpful way. Pay your dues and learn as much as you can From all the techs in your shop. Good luck