I don't even think this would work without disconnecting from the main source via your breaker, so workers down stream are perfectly safe. And I don't see how

I don't even think this would work without disconnecting from the main source via your breaker, so workers down stream are perfectly safe. And I don't see how putting 10-15 amps through a cord, plug, and outlet that routinely handle 15 amps downstream everyday causes a fire risk. My house doesn't freak out when I operate a space heater, and I don't see why it would freak out if I push a space heaters power through that exact same setup. The cord is dangerous, in the sense that you could get shocked by your generator. You can get shocked by the thousands of rusted, rewired, half functioning generators on Craigslist without every using a cord like this.