In quantum mechanics, the phenomenon you are referring to is known as quantum tunneling. It is a probabilistic effect where particles can pass through potential energy barriers that, according to classical physics, they should not be able to cross. This effect has been experimentally verified and is an essential aspect of quantum theory.
While quantum tunneling is a fascinating and counterintuitive phenomenon, it typically occurs at the microscopic scale, involving particles like electrons or individual atoms. The probability of observing such effects at the macroscopic scale, involving large objects or people, becomes increasingly negligible due to various factors such as the complexity and decoherence of macroscopic systems.
To date, there have been no scientifically documented instances of people or macroscopic objects spontaneously tunneling through solid barriers or exhibiting quantum behavior on a large scale. The principles of quantum mechanics primarily manifest at the microscopic level and are not typically observed in everyday macroscopic phenomena.
It's worth noting that the behavior of large, everyday objects is well-described by classical physics, which is based on deterministic laws rather than the probabilistic nature of quantum mechanics. While quantum effects become increasingly negligible as objects increase in size and complexity, they still have a profound impact on our understanding of the microscopic world and play a crucial role in fields such as solid-state physics, atomic physics, and quantum computing.