My dad called me and told me he got a rotten egg from the last dozen I gave him. It was all black goop and smelled awful. Could this be a one time thing or should I be worried? The egg couldn't have been any more than a week old. I sell eggs in my community and really hope I haven't made anyone sick. I try to wash my eggs as little as possible because of the bloom, but sometimes they can be a little messy. Anyone with a little experience or words of encouragement?