I had charged it and had it sitting on my bed, about to put it away. It turned on by itself. I was really confused and went to shut it back off, but the - wasn't responding, and I realized it was at the top intensity/speed (which I'm sure anyone with the same or similar toy, knows it turns on at the lowest). I fiddled with it trying to get it to turn off again, pressing around the buttons and so on and it wasn't working. It turned itself off at some point. Then back on. Then back off. (not touching it at this point) I eventually had to just let it wear the battery out and die.
I thought maybe it was a weird fluke and tried charging it again but the same thing happened except I was able to turn it up to one of the pattern settings, but that was all that worked.
Anyone know what on earth happened? I was so upset I cried, haha. I really don't understand what happened.