Our front room has a ceiling fan in light fixture. The switch is by the front door, and could be knocked by someone rushing out.
It seemed to turn itself on. Randomly. Everyone says it wasn't them. When it was down to 2 people in the house, I had to explain it was me or him, and it was NOT me, or the ghost, and left it at that. I TAPED the switch.
And it happened again. ARRGGG!
Hmmmm.
The 2nd floor hall has 2 switches. 1 controls the hall ceiling light. The other
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SOB! It controls the front hall light/fan. I had no idea, and assumed it did a wall socket. I've been here a year, and am still discovering things.