I never did homework and was checked out most of the time at school but tested really well (90%+). I even had a teacher tell me that I would never keep a job because of your same thinking. It was completely untrue. I didn't do homework or pay much attention because I was not being engaged. I was there to learn not to do busy work. I've maintained full time employment for 2 decades now because work is where you have to do bullshit, not in school.