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xkcd #2929: Good and Bad Ideas
(imgs.xkcd.com)
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While it seemed like a fun prank at the time, I realize my prank fire extinguishers full of leaded gasoline were a mistake.
Yeah, if you want to electrocute some poor linesman outside. If you have considered purchasing a generator for emergencies, get the transfer switch installed and be prepared so when you do it, you do it safely.
I’m hardly an electrician and even I know to have some sort of a cutoff switch that can isolate the home if I want to power it separately.
Obviously you shut off the main breaker so as not to backfeed. Didn't think anyone would be pedantic enough to make me say it. I wasn't writing out a tutorial.
Point being, there exists a purpose for the allegedly purposeless thing.