He isn't the cleaner though - he's the principal. "It is all about creating a safe environment for the kids before the day starts," he says.

Mr Crozier, 54, will retire next month, stepping down as the school's longest-serving principal.

He started teaching at Dandenong primary in Foster street in 1990 and took over as principal in 1994, enjoying his role so much that he's been there since.

"I suppose I liked the place because it was very multicultural, and in a sense I could relate, coming from Sri Lanka," he says.

"There are, for instance, migrants from war-torn countries. Dealing with those issues, being able to help, is challenging but very rewarding."

"I think that is what's different about Dandenong Primary School. We do more than just educate, we are a part of the community and have a lot to do with welfare. We help the kids and parents with housing and clothing and give them information.

"That is what I love about the job, the ability to create and build networks and relationships with the parents, teachers, and students.

''You have an opportunity to have a positive impact on people's lives and direct them as to where they're going in life."

Teacher and former student Samantha Hill said Mr Crozier was great. "He's very laidback and easy to get along with, and definitely doesn't rule with an iron fist."

Instead, Mr Crozier believed in making the school feel like a welcoming place by being a regular presence around the school. "All the kids know who I am," he said.

"The best part of my day is yard duty in the morning. I say hello to over 300 kids every morning. That is definitely something I will miss."