Defence lawyer Andrew Dickenson said Brummer had been restrained by up to five security guards during the scuffle, had a bloodied nose and his hands tied when he lashed out.
"Largely this is a case of self-defence, but whether or not it's reasonable under the circumstances," he told the court.
The court heard Brummer had drugs in his possession but they were later found to be prescription medication.
Mr Dickenson asked for the matter to be referred for a diversion hearing, given the circumstances.
Magistrate Ann Collins initially had reservations, but agreed after hearing Brummer's claim of self-defence.
"Clearly these sorts of incidents are not the sort of incidents that would be diverted," she said.
The prosecution said the security guards were "amenable" to the matter proceeding as a diversion.
Two of the nine charges will proceed: attempting to commit an indictable offence and unlawful assault.
Brummer was ordered to reappear in court on May 1 for a diversion hearing, under a program which allows first-time offenders to avoid a criminal conviction.
Brummer, a winner of two silver Logie awards, walked from the court with his lawyer without speaking to media.
-AAP
