I used to cast on the porch of my apt. in CA, using a propane tank for my smelting pot, 2 burner stove, BBQ, and a propane lantern, all run off a tree type manifold with the lantern on top of the tree. Warm night, bugs aplenty drawn by the light, and casting from an electric pot. Saw the moth, a big one, go into the pot from the corner of my eye, and I got a good amount of spatter. Didn't empty the pot but it got my attention. Started to cast during the day or on cold nights.
And I know the industrial hygiene wasn't great. And those crusty ladles are definitely a danger too. I learned to preheat them too.
Essay W