My Aunt's house is a Frankenstein's Monster. Her late Husband made a number of unique wiring modifications. previous post about the her house: Question on toilet mounting; No visible bolts?
1st, There are hidden switches all over the house. many of the switches we have no clue to what they do (over 20).
I suspect there is some sort of puzzle/code to the workings of the switches. Flip certain switches and things happen- Lighting in 3rd bathroom goes on after 3 years of no power/bypassing the light switch in the room, 4 Big 28" x 7' inwall Metal storage cabinets unlocking & open,then the locking mechanisms locked again unable to close, in the Mud/Wash room the metal mirror slipped down in to the wall to revealing new 2 switches, some switches in the master bedroom are now glowing green.
2nd, There is multiple cross-wired corruption, breakers that are off are getting juice from else where?
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What happened was her 4 Grand Kids went on a hunt for switches and I suspect pressed them all as they found them.