Explain this to me:

Why is it that whenever somebody is walking down the street holding an umbrella, they somehow fail to grasp the obvious fact that the umbrella has just drastically increased the actual physical space necessary for them to safely, and without collision, traverse a crowded street? And that this new physical space consists of a 4’ diameter dome arrayed with pointy spokes at regular intervals right at face-level, so that even if YOU (minus the umbrella) can pass easily between 2 people walking the opposite direction, your umbrella simply CANNOT?

Oblivious motherfuckers.