Remember that school equipment is school property. Principals and teachers should not use school property for personal benefit. Many principals have faced dilemmas when teachers used school equipment to photocopy church bulletins or political materials. One principal reported a stolen laptop to the police only
Avoid inappropriate relationships with students. Principals and teachers face ethical dilemmas when they call children at home or meet them outside of school without a good professional reason. There is really no good reason for a student to visit the home of a teacher or principal.
Discussions about ethics will result in more informed teachers. In turn, you will have fewer headaches about ethical dilemmas.