What should a driver be aware of when approaching a vehicle which is attempting to park?

That the vehicle being parked may move out without warning.
The driver may have to stop and assist the driver parking the vehicle.
That there may be a driveway at the point where the vehicle is parking.
The vehicle may be parking at an area designated for loading.

Explantion: When you approach a vehicle that is being parked on the roadway, you should be aware that its driver will probably be concentrating on parking the vehicle and may not be aware of moving out into the road to correct its position.

Theory Tester

What should a driver be aware of when approaching a vehicle which is attempting to park?

Safe and Responsible Driving