It's all a matter of context, people can learn to do this, but one would need a reason. I've actually visited an old Victorian-era house that had "a tunnel" in

It's all a matter of context, people can learn to do this, but one would need a reason. I've actually visited an old Victorian-era house that had "a tunnel" in the basement. It ran from the front of the basement, underground, to somewhere underneath the public street where it terminated in a half-cylinder chamber perpendicular to the tunnel. Everything was lined with bricks, solidly built. I was told it was used to store booze during prohibition but no one is really sure. Found this on youtube (https://youtu.be/nDTyz7ivgNk?t=78 https://youtu.be/nDTyz7ivgNk?t=78), that's the one.