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It’s very unlikely you’ll ever have to climb the ladder inside a wind turbine, and even if you do, it’s even less likely that you’d need to use the emergency exit.

But should that million-to-one set of circumstances ever fall into place, be warned: a strong set of nerves may be required.

In the video above, British YouTuber Tom Scott abseils down from the top of a 50-metre turbine after exiting via a tiny hatch in the very top — a fail safe that’s there in case someone gets injured and is unable to climb back down using the ladder. 

If you’re the type to get a little queasy about heights, look away now.