No.

You decide to wait, and not risk Molly seeing you press the power button. Molly closes her bag saying "I was sure I brought it here. If you find it, will you bring it to me tomorrow?" You tell her you will, and she walks out the door. She walks through the rows of bookshelves, and you see her looking around on the floor, trying to see if it dropped while she was walking towards the stairs. You are hiding behind a bookshelf, and you know she can't see you.