Here's a tip but don't let it get around or it won't work:
Keep you the best car you can afford but go and purchase you an old Ford Pinto. Remember the ones that exploded upon impact and had to be recalled?
Then, place a couple of sticker on it that say, "Warning: Do not back into this car! It still could explode!"
Then drive THIS one to the markets and start backing up while looking out the side window. Believe me, people will always make space for you!
In fact, when you get back to the car, it's easy to spot cause ain't nobody parked close to it.