[elandybarr]

One of my laptops is running with a counterfeit charger (Amazon) and a counterfeit battery (eBay). As soon as I realized that I have never left it plugged in where I don't see it - who knows what kind of fire hazard it could be.

Also, lasers. There are plenty of illegal laser pointers on eBay and output rarely matches the claims. And you really don't want to play with these illegal lasers unless you have real wraparound lenses.

[ethbro]

I had a knockoff laptop power supply energetically self-disconnect. That was surprising!

Laptop was plugged in, cord draped over something and under mild tension. As near as I can tell, the wires shorted on the DC side, instantly melted the plastic insulation, and suddenly I had a severed cord and two live wires sticking out of the brick.

... so no, I would never leave a counterfeit laptop charger unsupervised.