You're right, if it's induced, it's still not 'right' but it's
not going to kill anyone or start a fire. But what if it's not ?
And, given his admittedly limited electrical ability and understanding
( he's done well so far, to do the tests he did, and to know to ask ),
who do you figure is qualified to see what's actually going on ? Him
with a light bulb guided by your long distance guesses, or an
electrician ?

As I stated, that depends. Sorry, see nothing to respond to there.