Harassment and bullying

According to the 2011-2012 student handbook, harassment/bullying is "any unwelcome verbal or physical act from one person to another person that may cause either physical or emotional harm. Any conscious willful, repeated and deliberate activity intended to harm and/or induce fear through the threat of further aggression. An imbalance of strength/power; it is not about anger or conflict, it is about contempt; a powerful feeling or dislike towards a person considered to be worthless, inferior or undeserving of respect." These behaviors can be minor (eye rolling, laughing at someone) or major (threatening, hitting) or anywhere in between. What kind of bullying or harassing behavior occurs in our school? What is the difference between "I was just kidding" and harassment? How does a teacher tell the difference? What should be tolerated and what should be dealt with? Does the attitude of "some kids just need to toughen up" have a place in our school?