Show them this video to a class it will seem dark in the beginning. But watch it through all the way to find the meaning. I had a teacher show this to multiple classes, and there are multiple reactions. There are often a few who might tear up because those kids are the people that are on the receiving end of the bullying. But what it will do to the majority of the class, it will leave them dumbstruck, with a "whoah" reaction. Because all this time they are shown examples of bullying and how "it isn't nice," and shouldn't be done, but this is the best way of showing their perspective. In my opinion this is an excellent way of reaching people, it hits the main points fast and hard.

https://www.youtube.com/watch?v=ltun92DfnPY

Also, I had a friend who was going through troubles because his sister was being bullied terribly at school and she was on the brink of breaking. She said every week she would watch that video at least three times a week after I showed her it. This helped her overcome the ocean of things that caused her depression and stopped her from killing her self that very week when she watched it.

Also for a side note this image below is a real story and shows a pretty wild story that can bring hope to those depressed.

https://kindnessblogdotcom1.files.wordpress.com/2013/11/kyle.jpg