Her "Super Mina" sensor was in her right hand. He picked up her left hand but didn't put it back exactly where it was when she went into charge mode, explaining her confusion when she woke up.
This is pretty cute. I for one, don't mind if robots gain sentience, which is clearly what's happening here. But then again, when the robot can learn and rewrite its own operational data, it's only a matter of time till it becomes sentient, and not just another program routine.
At the start of the chapter I was thinking, he's basically sleeping hugging a microwave, obviously it would hurt.
Later in the chapter the "thing" I was comparing to a microwave compared itself to a microwave...