John Axon's Footplate

Origins
Excerpt from Wikipedia:

John Axon GC (4 December 1900 – 9 February 1957), commonly known as Jack Axon, was an English train driver from Stockport (Edgeley Depot) who died while trying to stop a runaway freight train on a 1 in 58 gradient at Chapel-en-le-Frith in Derbyshire after a brake failure. The train consisted of an ex-LMS Stanier Class 8F 2-8-0 No. 48188 hauling 33 wagons and a brake van.

Effects
When disturbed, it releases extreme amounts of steam. Its temperature is enough to burn skin, so it is recommended to never move the footplate. However, it has been noted to be a good power source for steam driven artifacts and machinery and can be used in a pinch in case of a power outage.