You know, my grandfather was an egg farmer. I used to candle eggs at his farm. You hold an egg up to the light of a-a candle and you look for imperfections.
The first time I did it he told me to put all the eggs that were cracked or flawed into a bucket for the bakery. And uh, he came back an hour later and there were 300 eggs in the bakery bucket. He asked me what the hell I was doing but I found a flaw in every single one of them. You know, thin places in the shell and, uh...fine hairline cracks.
You look closely enough you'll find everything has a weak spot where it can break, sooner or later.