So Kao why are you reading more into it other than I posted a blog that had notes listed from Charles Stanley's teaching on child discipline. I agree with virtually all of it but come to your own conclusions and findings. I already told you in an earlier post what my point is that to follow Biblical wisdom in applying discipline. Go back and read it again if you still have questions.
Your link made me question the meaning due to my belief (at least based on the accuracy of these preliminary findings and pics) that this case has nothing to do with discipline. This looks more like anger and rage.