I stopped buying anything electronic from Amazon because one power to USB adapter burned up, tripped a circuit breaker, and it broke my fridge. Luckily, that was the only other thing I had plugged into that circuit at the time.

Another big issue was my friend bought an Apple power adapter that started smoking after a few hours of it being plugged into the wall.

Scary stuff, especially when you consider anything that goes on or in your body could be counterfeit too.