A THUNDERING crack before gun smoke fills the air and North Bundaberg resident and Vietnam veteran Roger Saunders is immediately transported back to the terrifying battlelines.
Mr Saunders' wife Christine said the couple, especially Roger, had been left reeling after three loud explosions rattled their home in recent months, the last at about 9pm on Saturday.
Mrs Saunders said she feared not only for her husband's health but also elderly residents it the vicinity.
"After the last one Roger got really worked up and angry and he still hasn't settled," she said.
"Normally he's quite calm because we've spent years treating his PTSD.
"These explosions followed by the smell of gun powder are just undoing all that hard work."
Mrs Saunders said she wanted to ask whoever was letting off the explosions to think about the consequences of their actions.
"I am under the impression that fireworks and explosives are illegal in a suburban area without a license, however, if the person has a licence perhaps they could publicly share it through this area," she said.
"These actions are having a devastating effect on my family."
Mrs Saunders also feared the explosions were becoming increasingly larger and louder and said if someone was stockpiling gunpowder, children in the area are also at risk.
"Image if a kid gets hold of the gun powder," she said.
"The last one on Saturday night even I hit the deck - the noise rattles the windows and goes through the whole house.
"I've talked to other residents and they all say how much of a fright it gives them."
Mrs Saunders said the timing of the explosions couldn't be worse given Mr Saunders was still coping with the aftermath of the floods, after the helicopters overhead also triggered flashbacks to the Vietnam War.
Mrs Saunders said the couple are at their wits end and have contacted the police, but the best outcome would be for the explosions to just cease.