ALCOHOLICS Anonymous spokesman Jim Sweeney never got angry until he had a drink.
Now recovered, Mr Sweeney remembers spending his early adulthood as drunk as possible.
"When I was drinking, if the bar was open, I was there," he said.
Based on his experiences, he said the Palaszczuk Government's new lockout laws were a step in the right direction to curb alcohol-fuelled violence.
"Those 'one punches' don't happen without alcohol and drugs involved," he said.
"While you've got alcohol being served, it's the full potential of one punch happening; it's the full potential of a fight. When alcohol is not served, there's no chance in my opinion.
"I don't know anyone who has walked down the street sober and happy and just punched someone."
From July 1 this year, last drinks will be called at 2am in all pubs, clubs and hotels.
In February next year, a 1am lockout will be introduced, with last drinks called at 3am.
Mr Sweeney said he would like to see last drinks called much earlier.
"I would like to see it go back to 10am to 10pm, and shut cabarets by midnight," he said.
"I believe 10pm is long enough."
Hervey Bay Liquor Accord chairman and Torquay Hotel owner Darren Carter said he did not think the new lockout laws would make a difference in the fight against alcohol-fuelled violence.
"If people want to fight, they're going to fight," Mr Carter said.
"By that time of night they're already drunk, and it's not just alcohol that's in their systems."