Had the same thing happen to me about 6 - 7 years ago. Dropped off a friend of my ex near pinjarra and was heading back to mandurah. About 2 in the morning and next thing I know there are 2 natives in the middle of the road. I had a VN at the time so jumped on the brakes and slid for a while. Think I might have just clipped one with my mirror, if not it was close. I was pumping adrenaline and wanted to go back and have words but apparently that was the thing they did at that time. Wait for you to get out the car and all the brothers jump ya and steal your car.