Teacher's work is so hard. As for me, it's the hardest job. Teacher always has to check student's homework, has to know all school program, sometimes he has to shout on his students to calm them.
Teacher doesn't have time for his own life. They usually come home at 19-20 o'clock and just check homework. They also dont have weekends.
It's hard to be a teacher, but good teacher always grows good people.