How did we survive?

Aka watt doggers. I've had dogs from homebrew versions (nothing more than zip cords with food safe spikes connected straight to US house current,) but they tend to cook a little unevenly. And little to no browning, it's all internal resistive heating.
In college (before microwaves were popular) we made dogs by sticking a copper wire in each end and then the wires into an outlet. 45 seconds and they were done.

I was shocked to learn you should not check the temperature of the dogs by touching them before you unplugged them. :>)