Wow, that might be the best argument for keeping fermenting things sealed tight I've ever heard. Imagining someone trying to figure out that sour smell getting worse by the hour is honestly kind of funny. At least you didn't have to explain a new "living" leather conditioner that grows a second skin. Your jars being that empty is probably for the best, gives the next batch less chance to go on a field trip.

Wait, they didn't see that? The cost was the whole point, it's wild they missed it.