One of the house's I grew up in, as a kid, was a 5000sqft home, my father had a routine in turning certain lights on as we left. Often when we returned, the lights were all off, switches had been phsically turned off.
All hell broke loose, when my wife and I moved into our current house, mostly but not all issues were bizzare electrical issues. Much of my career has been spent chasing electrical anomalies,(something I'm pretty good at).
The most ridiculous was that the TV would change channels on it's own, no big deal, lots of rational explanations for that, except..............
The ONLY time, EVERY time, it changed channels was when I left the room and didnt have the remote.
If the remote was near me, no channel changing, it was like a kid playing a game. As soon as I was leaving to go to kitchen/bathroom etc it would change,
it was truly ridiculous, I got to the point where I would just laugh and shake my head
I tried many theories to explain, my body position in reference to TV, etc. None seemed to fit.