"Will never buy from home baker"....whew, are you gonna piss off some folks with that one! Home baker licensed? Home baker under the radar? So the mother in law made the cake..ok, as a gift? Did she sell it to the bride? I can see egg shells ending up in a professional kitchen just as easily, what with the amount of eggs being cracked into those huge Hobarts. Maybe it was an honest to God mistake, and gross indeed....but perhaps you should amend the title of your thread? Maybe?....just a suggestion..a small one.
Thank goodness for home based bakeries with people that know what the heck they are doing!