I have a limited, sophomoric understanding of physics. But what happened last night seems impossible. The wind was strong all night. A great, unseen staccato of gusts shook the house, flickered the power, and moved my trash can. But not only moved it. Guided it through a Borgesian labyrinth to the front of the house, nestling it in a cement corner of the house and steps.
I have drawn this phenomenon to scale, with the Trash Can represented in light blue, and the two possible paths in black and yellow:
I have drawn this phenomenon to scale, with the Trash Can represented in light blue, and the two possible paths in black and yellow:

Yet it did happen. And I, in my socks and t-shirt and jeans, pondered it at great length in the aria of wind singing around the house this morning. I traced the possible paths while holding the Trash Can. Measured the breadth of passage between all the necessary straits...
It is indeed a most curious case.