It was easy to put out all I had to do is close the lid on the parts washer and presto no oxygen, just a carbon coated lid left to remind me of another adventure.
Now as you have mentioned "SHED" adventures Max I would like to hear about other peoples OH&S miss adventures. My other two
Well heres one of them
HYDROGEN EXPLOSION
Having access to a large numger of deep cycle battery banks I built a 2000 amp 48 volt DC Parts washer. This baby could boil 200 litres of water in 5 minutes so that cleaning was in a very hot electrolysis bath. Worked a dream until one day I fogot to turn the power off before removing the job. The resulting explosion blew me clean of my feet and out of the shed door.