What's so hard to get? Every now and then I'll see some idiot bearing down on me, going the wrong way down a one way parking lot alley; one way because the parking lot wisely chose to use diagonal parking spaces. So why is it so hard to understand? Diagonal parking spaces are easier to pull into and out of. Front first. And then there are the people who park rear first into a diagonal parking space. Surely they've missed out on this great parking idea as well.
Maybe I should keep some flyers in my car to enlighten people of their folly.
It reminds of this woman who came up to me in a store where I was a computer salesman. "I can never use mice, they're so hard to use," she said. As it turns out, she was holding it upside down with the cord facing out the back.