This happens a lot, some technology turns on randomly, or things open by themselves. Recently, my battery run wireless Sirius radio turned on randomly at night, and right after, the sink turned on by itself (It's a movement detection sink so it's electronic). Nothing could have got in the way of the sink for it to turn on. I know there's probably an easy explanation to it, but I was wondering what it was. Maybe circuits are closing by themselves somehow? If so how would that happen, anyways, I'd appreciate any info you have. You can probably I'm quite bad at physics, but after some internet searches, I decided to post here because I'm just curious as to why these things happen.