Last Weds. I went to check the eggs and found the 3rd egg that was cracked had popped. Didn't explode, thank goodness, but gawd what a smell....
I just took a very old woodduck egg out of the bottom of one of my nest boxes, while I was cleaning them out, which had been buried very deep by the hen. I got it out with plastic gloves and put it in a plastic bag. When I barely hit the bag on my pants by accident it BLEW UP.
By far the worst smell I've ever experienced in my life. Hope nobody else has to go through that. lol