Why are people incapable of parking their cars in the middle of a parking space ?

a href="http://www.thedailymash.co.uk/news/environment/people-who-know-how-to-f%2acking-park-on-brink-of-extinction-20070912397/" rel="nofollow"http://www.thedailymash.co.uk/news/envir…/a