So Much for a Sandwich

Typically, I use the "play yard" to "babysit" Cooper if I need to walk away briefly to make a sandwich and so forth. Today, as I am spreading the mustard, I hear a commotion, a happy one, so I just kept on spreading, not running to investigate. He was just in the corner of my vision and I felt he was okay. So as I pieced together my sandwich, finally I glanced over to see Cooper staring at me with a huge smile, though, not on his back swatting at his toys in the play yard, rather on his stomach and wiggling to see me. He had rolled over by himself, without any encouragement from Mommy, toys, or sounds. Well the pictures below capture that he CONTINUED to do this on his play mat as I ate that sandwich. He did it 3 more times, unassisted! I suppose this means the "play yard" is no longer a safe and reliable "baby sitter"! Growing up so fast, I can't stand it!