And you are saying, indirectly, that firing would not be the Christian thing to do? What rot. Actions have consequences. Sin has consequences -- between God and man, obviously, but also between man and man.
I'm all for forgiving (or reprimanding) the guy as one person to another, particularly if he was contrite, but he burned the NT while in his role as a teacher and a leader. Firing him is not going too far -- and it's certainly not unChristian, if that's what you were implying.
And if the principal and the teacher don't apologize or express remorse, I wouldn't want to be in their shoes.
Dimitru Duduman was a Romanian pastor of Open Doors and you should hear his testimony about smuggling Bibles into Romania and USSR. The irony of the story is that Duduman was the son of a pastor who turned his back on God and was originally employed in the military and part of his duty was to search for Bibles on the ships coming in and report missionaries to the government. A Communist enemy of the gospel who wouldn't stop persecuting the Gospel died in such a way that the other Communists were fearful of God and let Duduman go.
I read about the conversion of Paul and I have always thought about those martyrs that he had killed. Some of them had to have prayed for him right before they got killed. Maybe the martyrs that prayed for Paul were some who witnessed Our Lord's death and heard his words, "Father forgive them for they know not what they are doing."
Because we serve the living God, the Name above all Names, and have His Spirit, we should ask His Spirit for love and forgiveness towards our enemies. At least give them a chance to hear the true gospel, not the lies they've heard about Christianity.
Dana Currey was treated worse in Afghanistan by the enemies of the gospel and she is praying for those who are controlled by principalities and powers.
Matthew 5:44 But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;