Depravo said:That looks more like wistful reminiscence than concentration.
Rydian said:You know one time when I was younger I was sitting in the back of a truck with one of my little sisters (who was abut 9 at the time), and she suddenly got up and started walking away.
I asked her what she was doing. She told me she needed to fart. I said "I don't care, just fart."
Her reply: "I need to concentrate!"
True story.