All the 52-year-old woman wanted was a seat.
What she got instead were bruises when she was punched on her arms and face.
Her daughter, who wanted be known only as Ms Aishah, because her mother is embarrassed by the incident, said it all began when her mother had moved aside in a bus queue at Tampines Bus Interchange.
She had just finished work last Monday at 7pm and wanted to take SBS service 293 home.
She moved aside to let other commuters behind her pass because she did not want to squeeze onto the crowded bus.
But when she moved back to the head of the line to wait for the next bus, she was accused of cutting the queue.
Ms Aishah, 24, said that when the next bus came, the young woman behind her mother accused her of cutting the queue and hurled vulgarities as they were boarding the bus.
Ms Aishah's mother, who was seated at the front of the bus by then, retorted that she was already at the head of the earlier queue. That was when the woman, who Ms Aishah's mother described as being in her twenties or thirties, snapped. She shouted more vulgarities as she stood in the middle of the bus. Then she rushed up to Ms Aishah's mother and punched her. She
landed blows on the woman's arm and face before she was stopped by other passengers. The bus had not moved out of the bay and passengers were still boarding.
Ms Aishah's mother told the driver she wanted to make a police report. The two women went to the SBS Transit Office and the staff took their statements before allowing both to leave.
Ms Aishah's mother went to Changi General Hospital for treatment and was given a week's medical leave.
A police spokesman said they had received a call at around 7.30pm that day. Investigations are ongoing.