Many years ago, a psychiatrist diagnosed Alan Chung with an "extremely unusual sense of fair play".
In the early 1980s, Mr Chung - better known as "Ugly" - exposed illegal accommodation for 50 fruit pickers in Shepparton by arranging a fire inspection.
 More than three decades later the 77-year-old, a resident of the Elizabeth Street / Cooke Court housing estate in North Richmond, won't be silenced.
When he and his neighbours moved into the new buildings in 2013, their apartments  did not have security doors, even though the tenants regularly confronted drug users, violent intruders and thieves.

"We have a major drug problem in the North
Richmond and Abbotsford area. People are coming in to our building, they are not residents, addicted to all sorts of things," Mr Chung said.
 Recently, Ugly opened his own door to find a "thin streak of blood on the floor" near his door - the residue of a heroin user.
Most housing estates are equipped with security doors, he said.
"A lot of people, the elderly and people with young families simply won't open the door if they don't recognise the voice on the other side … people don't feel safe."
He took the matter to the Department of Health and Human Services three years ago, but a manager told him they could not install the doors as it posed a fire risk.
He sniffed what he describes as "bulls--t".
"I said that's right, they just tell us whatever they think, give us no respect," he said.
"Tenants here were being treated badly [so] I decided we had to stand together and do something about it.
"I was able to draw together a handful of tenants and a couple of traders up the street and we just kept the pressure up. 
"I want to teach them [other residents] that they must fight to get what they need to live a decent life."
Ugly spoke to the Melbourne Fire and Emergency Services board and sought written confirmation that security doors in his building would not cause a fire risk.
He formed an organised lobby group with about dozen advocates, including residents and sympathetic local Vietnamese and Chinese local traders.
They conducted a survey on the matter, and also translated it into Chinese and Vietnamese for residents who do not speak English.
Of the 230 residents, 190 responded, and unanimously called for the security doors.
Ugly took his findings to the former minister for housing, Wendy Lovell, in addition to the department, but was rebuffed.
Two days after the state election on November 29, 2014, he phoned the new Premier, Daniel Andrews, and demanded action.
"I said, you owe us, you got in only because the North Richmond estate electorate voted for you. It was a bit cheeky but I thought why not…"
Eventually, the department succumbed and agreed to grant them security doors. They are also installing fire alarms in the apartments.
Ugly is being stopped in the street by local residents, hugged and thanked for his help.
"I can't resist a fight, that's my sense of fair play. If something needs doing, then get in there and bloody well do it," he said.
"That's the end of the story, it's no big deal. It's just one of those things, that if someone doesn't do it then people just get walked all over."
A department spokeswoman said it was installing more than 200 security doors across four blocks of walk-up properties. 
She said: "The traditional security doors would have posed a fire risk as they deadlock and require a key to unlock, meaning in an emergency situation people are hampered from exiting.

"The doors that are being installed deadlock from the outside but allow the tenant to pull the handle down and safely exit the building."