Take quantum vortices, which are basically whirlpools of angular momentum in materials like superconductors and superfluids, giving them strange properties.
They swim up to the ocean surface to poo, and this poo can be spread in an eddy – a large current of water moving in a circular motion, like a giant whirlpool.
I then attributed the accident to Pepper himself, whose mouth, being open at the instant I fired, acted upon the arrow much after the fashion of a whirlpool, and drew in the fatal shaft.