i would like to share a small experience with and have some feedbacks.
well,after a completion of a flight, we were performing the engine shutdown check list and the parking brake was set , but just after pulling the engine condition levers to ground stop the aircraft start rolling!!!! the aircraft was was parked in a downslope area and the shocks were not inserted yet but there is nothing specified in the flight manual that the aircraft may move in such circumstances!!!
thanks for sharing