This has got to be one of the most insane and reckless videos on Wikimedia. A live demonstration of how locomotives operate in neutral sections of electrified railways. Filmed from on top of a locomotive. By a person. Under 25kV overhead lines.
It's a very good demonstration of how the process works. It's also a very good example of what to never do.
https://not-acu-lt.s3.nl-ams.scw.cloud/null/709cd5b9-6786-4389-ab3c-2d1cccd1d1ea.webm