Poll: Teaching Life

There are some movie gems about neglected pupils and their teacher who doesn't give up on the young people. They have several problems to resolve, but see the future people within the little rascals and won't abandon them to leave them to their predictable fate. Please note that the teacher can also be a person who entered a field of different work from her/his educational background. Which of these golden teachers, fictional or real-life person is your favorite? Please report your personal hero here.