If you take notice of each person at school, you can guarantee someone will use verbal abuse on somebody at some point in the week, or physical abuse, such as a punch.
But if you take notice of the person who is being victimised, you cannot guarantee that somebody will do something about it.
Anti-bullying programmes and organisations have increased over the past few years. They have helped many people and have websites and phone numbers for young people to contact if they have any concerns about bullying at school.
But is it possible for them to help victims who do not tell anybody?
Each day, in schools across the world, people are picked on because they may have a slightly bigger nose, are slightly larger than others or even racially because they are not white.
Even small comments in the corridor such as "get out of the way fat boy" can have a huge effect on somebody, and, if constantly said, it can make them feel bad about themselves, even leading to depression.
In smaller cases like that, the victim normally doesn't say anything to their teacher or parents, which makes it easier for the culprits to get away with it.
If you are under any threat at all, whether it's at school, college, on the street or online, I urge you to contact a bullying website - a good place to start is www.youthinformation.com/bullying.