[theatretch85]

As are Zinsco and FPE Stab-Lok breakers.

Yeah they only falsified their test results to get the UL listing.

I too prefer to pigtail on any and every outlet and I never use the back stabbed connections whether on a switch or outlet. And where a light box is also a junction box for other functions, I always pigtail longer lengths of wire to connect to the light fixture, whether or not it has its own wires attached; it just makes it a lot easier to connect a light fixture with one set of wires coming down out of the box than tieing into a bundle of 4 or 5 neutrals all tied together.