Good thinking Mike.
Today I realised finally that the lack of stop positions on the doors really is a very bad idea.
I was trying to fish something off the back seat with the door half open and it decided to swing open of its own accord and whack into the side of my other car.
Now the other car is 17 years old I wouldn't have given a monkey's if it had marked that one but alas the GTI's door jammed against the side repeater of the other car and wedged itself stuck.
I had to rock both cars to free it.
So 17 year old car has a bit of white paint on its side repeater and white GTI has a lump of paint missing off the door.
Touch up pen will finally be ordered now