When naive shoppers find out that the least expensive versions of items they find shopping online through Amazon or unregulated/foreign Internet markets aren't the best quality or for use as intended; often ending in broken merchandise, death, or near death experiences.
Buyer: "I bought some cheap jack stands on the internet for 20 bucks, ten seconds after I lowered my car on them they broke, could've killed me!"
Friend: "Damn, that could have been an example of Amazonian Darwinism right there. Almost Harbor Freight level."