greedy hen question???

My hens are good layers and never peck or try to eat their eggs but this is the second time I have tried to get an egg out from under one of my BR's and she will stand up, turn around and try to peck the egg before I can get it. Last time she pecked a hole in it, this time I was faster than her. I was just wondering if any one else has had the same experience or do I just have a greedy hen???