On the mysterious finding faults in electrical things front I used to be able to fix dead computers by opening them up, applying power, and I could immediately "feel" which bit wasn't working. I had a reputation for it, eventually "we" came to the conclusion I must be subconsciously hearing ultrasounds that told me what the problem was - dunno - I never "heard" anything, but I was rarely wrong. This was in the days (1980-95 ish) when computers had socketted chips, multiple cards, all buried in a maze of other components - not like it is now.
I could do the same with most electronics, tv's, radios, ticket machines etc. (despite knowing virtually nothing about electronics at the time), one of my uncles was the same with refrigeration systems, show him a broken one and he could fix it, no manual (he couldn't read), never seen it before - no problem.
I now realize "we" were wrong - it must have been the magnetic stuff people seem so keen on here
But, just because I "believe" in one impossible thing doesn't mean I have to believe in all of them