I have a student in my class who is horrible at lying. The problem seemed to go away for a couple months, but lately it is coming back. You can sit there and watch him do something and then the next minute he will lie and say he never did that. It's not just with me, the cafeteria has problems with him lying, music, art, PE, he lies to everyone! How do you teach kids to be respectful and show them that lying is bad. It seems like such an important concept and I have no idea how to show them right from wrong.