I was a teacher for 30 years, except for one five-year hiatus. This year I left the profession. The short explanation is that I was burned out. I arrived at school at 7:45 every morning, I rarely left before 5:30 p.m. and I was often there later. As a new school year gets rolling, I offer two lists. Keep in mind that these are drawn from my experience in private schools, which are regarded as an ideal place to teach because of their small class sizes.