Greg Jennings whines to the referee's nearly every time he fails to catch the pass. I commented on that a few years ago. It hasn't gotten better. Greg Jennings is becoming a little more diva-ish, but I still think he's a really good WR, especially with that hip move he has on his slants and cuts. No ripping into you, just stating that I didn't see his reaction so I can't really speak on it or blast him for it. I just think if he did react poorly, he should look back to training camp '06 when he was torching Al Harris and Charles Woodson (when he was on the practice field) and making a name for himself.
I wouldn't be surprised if Greg Jennings reacted poorly, especially since he's in his contract year. He surely isn't thinking of Javon Walker, but I'd be he doesn't want some young pup derailing his payday by being overzealous and trying to make a name during training camp. Two sides of thinking.