According to the comment I was responding to, he got 3 bad experiences out of 3 orders, so 100% rate of issues. What's the expected rate of house fires?

Both you and the other commenter about his grandma's smoking habit are making nonsensical comparisons about things that are extremely rare, to support something that is supposedly extremely common, if you were to believe the parent's comment (or other stories you read online).

Why do you assume it was 3 out of 3 orders?