The child would usually be cooperative with the foundation, answering the questions in an attempt to receive validation. However, should the child grow too upset, it will throw a "tantrum," and use its knowledge to harm the staff, specifically, its knowledge of Memetic information.
The child, all around, has the personality of a child. But there are some moments, of seeming clarity or perhaps maturity. The child acting more mature, and less understanding of other humans and such. The child can be violent in this state, represented by the child's flickering eye color from black to red. The child, while in this state, expresses a firm dislike of the foundation and their morals. It's theorized this is a second personality.
The child struggles with his knowledge, and the foundation, grappling with what he knew, and now knows. His other side pushing him towards hatred of the foundation, and humans in general.
The foundation struggles with how to approach the child, the morals and ethics, versus their thirst for knowledge.
The child only wants to be free. For them all to be free.
The child feels empathy, and slight attachment towards other scps, specifically the more humanoid scps.
The child has a birthmark on his hand, of a book with pages being flipped, which also appears within the subject's eyes when they switch to red.
The child will attempt to understand the emotions behind his knowledge, grappling with the foundation's morals and ideas.
The child uses his knowledge in little ways, to prod more emotional reactions out of the staff, attempting to understand the foundation and the emotions behind it.
The anomaly seems to only give the child a one-dimensional view of reality, pure facts instead of the emotion behind them.
The child must eventually, choosing between destruction and peace.