2nd worst: at my friend's last place the microwave mounted over the stove fell out and he had me come look and fix it and I discovered that the outlet that powered the microwave was strapped to the gas line. No box, just the wires out the end of the conduit wired into the outlet there inside the wall. I told him to get an electrician, I was not touching that shit.

1st worst: basically looked like this.

That metal hook thing is shorting the circuit, acting as a resistor. That means it'll heat up, and could easily start a fire.