From the submitter: "Because if you don't live life on the edge, you take up too much space!"
That is the most strangely profound thing I've heard in a while. Think about it!
Quite often something just needs the tiniest little tweak to go from an epic annoyance to a masterpiece of fixing fame. I believe this counts as the latter. Just loosen the screw, move the block along the shelf, and tighten. Props! (Literally, props).