About 10 Mat Rempit, or biker gang members, chased a car and terrorised the woman driver and her female passenger near Kuala Lumpur on Saturday night.
The driver, Ms Noramnah Huda Mohamed Yuran, 34, told Harian Metro that she had merely sounded her horn as the group of motorcyclists were blocking her way.
That roused the group into action and they chased her vehicle, hurling obscenities along the way.
They surrounded the vehicle and smashed at the windows with their helmets and metal bars.
And there is a twist to the tale. The rear windscreen of her car shattered in the attack, so Ms Noramnah took the car to the workshop.
A worker there told her that the glass had been splashed with a chemical that weakened it, so that it could be smashed easily.
NEW TACTIC
This could be a new tactic being used by biker gangs in Malaysia, reported Harian Metro.
Ms Noramnah told Harian Metro: "My friend and I were out at about 11.30pm. We used the road next to Shah Alam stadium.
"A group of Mat Rempit were using the left and right lanes blocking my way. I had to sound my horn to avoid an accident."
The motorcyclists were angered and gave chase, shouting verbal abuse at the same time.
Ms Noramnah said: "At the junction, a motorcyclist with a female pillion rider used his helmet to break my windscreen.
"My friend and I were terrified as several motorcyclists were also trying to break the side windows using helmets and metal bars.
"We immediately sped to the police station. We even ran a red light as we were afraid they would hurt us."
The two women were in tears as the motorcyclists atttacked the vehicle at the traffic light. There were several cars at the junction then, but no one came to their aid, said an upset Ms Noramnah.
She told Harian Metro: "My friend and I were crying in fear but they just looked on."
On the chemical that was believed to be splashed on her windscreen, she said: "I didn't realise the Mat Rempit had thrown a liquid onto the car, but if that is so, it would have posed a danger to other motorists too."
There have been many reports of the menace caused by biker gangs on Malaysian roads, whether because of violence or illegal racing.
In early June, New Straits Times journalist Lydia Gomez was attacked in a similar fashion. The bikers surrounded her car in the Bangsar area and shook it. They then tried to smash the windows.
Ms Gomez described the incident in the New Straits Times: "It all happened within seconds. Then I noticed one of them drawing out a dagger about five inches long from the pocket of his denims.
"This was when I knew they were after my handbag, which was on the passenger seat. The traffic light was red, but I stepped on the accelerator."
She managed to escape unhurt.
My friend and I were terrified as several motorcyclists were also trying to break the side windows using helmets and metal bars.
