Almost seems like u answered ur own question. It's ur last yr, so do u want to chance putting up with a little BS in order to make a difference in a subject u care about. It's ur last yr, so any Parent BS, just tell em to FO and take it up with the principal. On the other hand it's ur last yr and maybe u just want to cruise into retirement with no issues. The latter seems almost impossible for any teacher these days tho.