"And even then when you plug that 1600 watt hair dryer in you run the
risk of frying those #16 wires that are inside the fixture."

Which is why I'm going to replace the wires with something better. Now
can we get back on topic? I don't need GFCI's in a 1950 home anyway
(got them in places where they were easy to install, but one doesn't
have to retrofit every time the electrical code shanges).