If you're a person who surfs the Internet on your phone—which you're probably doing right now—you've encountered the terrible modern plague of the Suddenly Moving Phone Screen. In fact, it will probably happen if you scroll down on this page (sorry, even filthy bloggers have to eat). YouTube animator plontulublalulu addressed this exquisite agony in this understated short film that you will now think about every time it happens to you:

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