My jaw drop to the floor when reading this, though: "Some chickens become habitual egg-eaters that break eggs open and eat them. An egg-eater should be culled from the flock if you wish to have eggs for the kitchen. Not only will that chicken continue to eat eggs, but others will learn from watching and you may end up with several egg-eaters." and "Sometimes curiosity or boredom leads a chicken to peck at an egg without the intention of eating it.".
I mean, that's brutal! I really did not know this!
On the bright side, I've learned something new today.