I'm trying not to freak out.
In bed reading mumsnet as you do and all of a sudden I hear this almighty bang on my bedroom door which is ajar. It's one of those crap ones with a frame and perspex in.
Thinking something must have fallen, I got up to investigate. I turn the torch on on my phone as the bedside table lamp barely gives off any light. When I reached the door my phone went weird, the torch went off and a qr code came up on my screen as if trying to scan. I tried getting it off and it closed to reveal the screensaver I have of my daughter. All the icons had vanished and the phone was frozen except for the screenshot which was blurred and looked almost ghostly.
I put the light on and check around. Nothing apart from a coat hanger on the floor which could have already been there as it was behind the door.
Couldn't do anything with my phone until all of a sudden it restarted and now appears to be working fine!