A chemist has been stabbed in the face with a screwdriver while trying to protect a co-worker during a robbery at Bankstown.
The wounded pharmacist fought off the attacker, then chased him with a chair.
The incident happened at 5.30pm on Wednesday afternoon.
Suzie Mealeski was closing up when she was approached by the man shown in this CCTV footage.
He requested Panadol and then demanded cash, holding a screwdriver to the woman's neck.
However, Ms Mealeski was not alone. Pharmacist Tom Hayek heard his friend's screams and rushed to her aid.
He confronted the offender and was struck twice in the face, once with the screwdriver.
After the bungled robbery the pharmacist chased the would-be thief out onto the street where there was a second scuffle.
He tried to hold the robber until police arrived, but the offender broke free and was last seen running down a nearby alleyway.
The hold-up isn't the only one police are investigating in the area.
On Tuesday in Yagoona, a similar robbery occurred.
A man entered a pharmacy at the end of the day and workers complied with his demands, giving him $1000 in cash.
One of the victims was only 15 years old.
"She's still shaken up, she didn't go to school and she'll probably need a bit of counselling," Yagoona pharmacy owner Gladis Hanna said.
Police are now investigating if the two incidents are linked.