I have had the sad experience of doing an eggtopsy and finding a viable chick. Never again, will I simply crack an egg open to do an eggtopsy.
Also, if you've ever smelled a rotten egg, you will never ever want to smell one again. I always open those quitters outside, no matter what the weather! In 6th grade, I had the dubious honor of having a rotten goose egg explode all over me when I was cleaning the quitters out of the school incubator. We had to evacuate the entire wing of the building for the rest of the school day.
Also, if you've ever smelled a rotten egg, you will never ever want to smell one again. I always open those quitters outside, no matter what the weather! In 6th grade, I had the dubious honor of having a rotten goose egg explode all over me when I was cleaning the quitters out of the school incubator. We had to evacuate the entire wing of the building for the rest of the school day.