With all this development and exploration, It was bound to happen:
It was simple and quick. He was standing up by holding on to one of his toys. He slipped and landed on the pig.(i think ) He didn't even cry about it. It just puffed up and started turning purple instantly. I surprised myself, I didn't even freak out or panic. After his bath, I noticed that it was already fading.
I am sure there will be many more of these in our future. He is my bam bam.