Tossing this into the void: field recording of a malfunctioning escalator in the Porto Metro. Maybe I'll do something with this someday.
Escalator Hellhounds
https://drive.google.com/file/d/1IuuNJ6J9g2kouFwn5QF0yoMguLqJhfhH/view?usp=drive_link
(Photo for attention - this was a separate incident when the metro flooded. They had everything back in operation within hours. #notmyphoto)