Naive students sometimes ask what would happen if electrons or other fermions were “forced” to violate the Pauli Exclusion Principle, but they never suggest any idea of what this would actually mean.
Whatever they are imagining probably involves thinking of those fermions as independent particles such that you can somehow keep track of which is which; but in quantum theory there is no way of doing that, and no-one has ever suggested an alternative theory that fits the facts and in which such separate identities make sense.