While walking along, you spot a sign in the window of a small store that says, "We have (almost) anything you want, if you can find it."
"That's interesting," you think to yourself, "especially since that store looks tiny.” Still, your curiosity is aroused, so you open the door, step inside, and receive a surprise. The store is huge inside! Leaning back and forth through the door a few times, you try to see how this could possibly work, but you have to give up. The store is huge inside and tiny outside. Over the cash register, you see another copy of the sign outside. Below it, there is a smaller sign that says, “Buyer is responsible for any unforeseen effects.”
“What’s that supposed to mean,” you mumble. No one is at the register, and as far as you can tell, there’s no one inside at all. You figure you’ve got some time and might as well look around a bit. As you wander the aisles, you realize that part about “if you can find it” wasn’t kidding, there is absolutely no order to the items on the shelves. You wander for a bit longer, and then something catches your eye.