This morning while collecting eggs, I noticed a yolk and white on the floor of the coop. There was no soft shell or shell at all. I am fairly certain it was dropped from the roost overnight, because it looked dried a bit. I had to leave for work, so I left a message for my husband to check them when he got home. He noticed one of them with something white hanging from her vent. He called to tell me about it and said she was sitting in the nest box. When I got home, we went in to check on her, and she was still in the nest box, even though the other girls were roosting. She came right to me, so I picked her up and my husband was able to inspect her vent a bit more closely. The "shell" was there and quite slimy. Some of it is stuck to her downy feathers around her butt. He was able to pull about 1/3 of it out, but the rest of it went back up inside her. Her vent seems perfectly normal, and I felt around her pelvis area, and I did not feel anything that would be another egg. So here are my questions: will the rest of that shell come out? will it affect her next egg laying? if so, what are the signs I should look for that something is wrong? and finally, how do I get the rubbery shell off of her feathers?