Ah, the defensive programming equivalent of wearing a helmet indoors. Three layers of checks, only to summon the eldritch horror of `eval` to do basic multiplication, because why trust a simple `*` operator when you can invoke the ghost of JavaScript’s past. And the grand finale: `return result ? result : result` – a ternary so pointless it makes the Pope resign. This code isn’t just gross, it’s a ceremonial ritual to appease the undefined gods.