Oh, I know that I shouldn't be laughing this hard, and worse, laughing this hard at someone's ignorance (which is way different than stupidity: ignorance is that you haven't learned, stupidity is that you can't learn), but, I really can't stop giggling at this one.
Okay, this is how you park cars in a busy lot:
Every other car reverses in
Every other car reversing in means that the driver's sides of the cars are facing each other. This is important with the next rule.