This incident took place at noon time. I was informed that the car turned upside down by itself due to excessive turning at high speed. Luckily the accident did not involve any other vehicles or passerby. Obviously the driver never drunk during this time.
We highly appreciate these good citizens who took the initiative to help the poor drivers Escaping the car and volunteered to control the traffic.
Don't drink and drive. If you don't drink while driving though, please don't act like one ;)