"Don't let one bad egg make you feel rotten."
The message is plain: bullying is not OK, says Angelene Lu from Our Lady of the Rosary school in Kellyville.
Hundreds of western Sydney primary school pupils got together last month to say "no" to bullying as part of a poster competition run by Interrelate, a not-for-profit relationship services organisation, which aims to put an end to bullying in schools.
Overall the state-wide competition received 5027 entries from 174 schools; 18 of those are from western Sydney.
The children proved wise beyond their years with their posters containing messages like "meanness is a sign of weakness", said Tanvir Nandha from Blacktown North Public School.
Reesha Kashif from Claremont Meadows Public School wrote: "Before hurting someone, think that someday you could be a victim."
Interrelate's chief executive Patricia Occelli said bullying statistics were "frightening" with an estimated 200 million children and youth around the world being bullied by their peers.
"And Australia has been ranked number one worldwide for bullying on social networks," she said.
"What's possibly even more disturbing is the impact that this kind of behaviour has on both the victims and the perpetrators."
The competition aims to engage the students in a language that is more relevant to them and get them talking about the problem.
"[It] encourages young people to relate to the scenario of their friend being bullied and consider how they can make a difference in stopping the bullying, rather than being a passive bystander," Ms Occelli said.
Western Sydney schools to participate included Barnier, Blacktown North, Blacktown West, Bligh Park, Catherine McAuley, Claremont Meadows, Guildford, Glossodia, Hassall Grove, James Erskine, Lalor Park, Oakville, Penrith and St Clair public schools, as well as Our Lady of the Rosary, Penrith Valley Learning Centre, St Andrew's and Crestwood primary schools.
Click here to view all entries to the competition.