I put a dozen random pure bred eggs into my incubator awhile back. I'm fairly new to incubating. I skipped day 7 and figured that I would candle today, day 16, and then again before lockdown. I pulled out three clear eggs that had absolutely no sign of development. I pulled out a fourth that had a thick-looking ring around it and some wonky dark speckled marks about nickle-sized in diameter on one side of the egg that I had never seen in an egg before. I watched for a few minutes against the candling light, saw no movement, and assumed that, along with the ring, it was an early death. I am an absolute idiot. I took the eggs downstairs and proceeded to crack them open. Sure enough, the first three eggs spilled out pure yolk. No sign of anything having developed. Then, I cracked open the fourth egg. What I spilled out onto the plate was a live chick, not fully developed. It was twitching, moving, probably reacting to being opened up. The odd dark specks that I thought might have been some weird bacteria? They were feathers, tiny little black starts of feathers. Having only hatched darker eggs up until this point (but many of them), I must have been thrown off by the tiny red leghorn inside of a light white egg. He must have had his back pressed up against the shell. And the funky thick red thing? I have no idea... seemed to develop despite that. I was mortified... and pretty positive, at that point, there was no way to take back what I had I done. I have been carrying this sick, heavy feeling around all day. I wanted to cry... I'm sitting here at work still thinking about it. I don't ever want to remove "bad" eggs from the incubator again. Granted, I don't want any exploding inside, either. I have no problem eating chicken eggs. I have no problem eating chickens fried, baked, etc. I grew up on a small farm and know how it goes. Chicks are a food source. But I have a big problem with killing a innocent chick out of ignorance/total lack of experience. That REALLY bothers me. Sigh... Thanks for listening.