Here's why you should be careful before opening your car door

Another day, another careless driver.

In this video posted by Roads.sg and submitted by Kelvin Heng, a motorcyclist crashes into an open door of a BMW that stopped to alight a passenger during a red light.

The ten second video shows the motorcyclist "flying" and crashing to the grounf from the impact of the car door opening.

Ouch.

According to the Facebook post, it is an offence to alight passengers at traffic lights and zebra crossings.  The offence carries a fine of $130 with three demerit points for either.

We hope the driver is not seriously injured.