The first time was when I was in fourth grade. My dad was out of town when the babies came. I put some wood shavings in the nest box, but it wasn’t enough. We should have had straw, but for some reason my dad didn’t make sure we had some when he left. It was early spring and it was cold. All the babies died. We bred my doe again and everything went fine.
Another time, as an adult, I was out of town when our rabbit gave birth. Apparently she had tipped her water bowl over. She had gone some time without water when she gave birth and was dehydrated. Mother and babies died. Most breeding experiences went fine, however.