We bought a PlayStation 3 controller on Amazon many years back. It was a pretty good fake, the buttons felt slightly different, but we thought it is just a different production run. After six months or so, Sony disabled this range of counterfeits (IIRC because the built-in battery was a fire hazard). So, we had a useless controller.
Just over Christmas I heard a story from my Aunt who had their basement flooded because of a fake replacement water filter she bought on Amazon. The entire filter unit exploded and water just poured out of the pipe.
