Just how dangerous are ethanol-fueled tabletop firepots, anyway?

[classicdrogn]

That is an image of someone intentionally doing the stupidest possible thing, refilling one while it is lit, causing a fuel-air explosion inside the bottle so it spurts out. That's not to say people don't do that unintentionally, but "people are stupid" as the reason we can't have nice things is one of the leading reasons for having concluded that the average innate value of human life is a negative number..