This happened to me about 5 five months ago and never happened again. I'm a 16 year old and I've been living in the same house my entire life, nothing particularly abnormal has ever happened and I'm very skeptical of paranormal events, but this really weirded me out and I haven't stopped thinking about it.
Here's what happened: on many occasions (but exclusively at night) I would walk past my dark kitchen and the sink would turn on, I would always rush and turn it off and it never really bothered me too much but the weird part was that it never turned on unless I was nearby, I never left the house, came back, and found it turned on. But I still didn't think much of it.
Then one day I was showering before bed, it was about 9pm and I got out of shower, my bathroom is a Lebanese style all-in-one bathroom which means that right next to my shower stall there is a toilet seat and toilet necessities, including a clogger next to the toilet seat (please note the clogger is plugged into a plastic head that acts as a stand to keep it in place).
As I was drying myself I suddenly hear a sound that sounds like it came from the clogger, I thought maybe it was my imagination (it was late and I was tired) then as soon as I look away and continue drying myself I hear the same sound, I look around and watch as the clogger slides across the floor slowly and is now nearly in front of me, the best way I can describe it; it moved as if a thousand little ants were under its head and moving it, it was moved so swiftly and smoothly (maybe floating slightly that's how it felt, also explains the ant comparison), I freaked out and thought maybe I was having hallucinations but I touched it and slid it back to where it was originally and it had definitely moved.
After that I started thinking about the sink a lot more and tried to connect it to the shower incident, was it some ghost toying with me? Funny enough after the shower incident the sink never turned itself on again and it's been 5 months.
It might not sound like much to many people but to me this is very bizarre and I can not find a single logical explanation to the shower incident (maybe I can explain the sink one, water pressure could have caused it or something like that, but the clogger really freaks me out and I always look at it whenever I'm showering I always feel like it's on the verge of moving again).
This is it, if someone has questions or a similar experience I'd be very happy to answer them in the comments.