An online video that shows a Western Sydney high school student retaliating against a younger boy has sparked debate on how to handle bullying.

"One in four young people in schools across Australia are bullied every week," adolescent psychologist Michael Carr-Gregg points out.

However, he applauds the fact that both boys in the online video have been suspended, saying that he is "worried this might normalise, sanitise and glamourise retaliation.

"The [bully] might have been very seriously injured, in which case the boy being taunted could have been charged with assault," Mr Carr-Gregg adds.

"There are better ways of dealing with [bullying]," he suggests, saying "walking away would have been an option."

"Violence begets violence," Mr Carr-Gregg believes, "[and] when violence does occur it escalates and kids then see violence as a problem solving device, which ultimately it isn't."

Many talkback callers disagree with this view, though, suggesting that the ideal of non-violence doesn't always work in 'the real world'.

However, Mr Carr-Gregg asks, "when you hit back and a kid falls over and bangs their head and is either dead or brain damaged, is that a really clever solution?"

He adds that victims of bullying need to be given strategies for coping, "other than becoming violent", and he also laments bystanders to such incidents filming than rather than intervening.

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