This all started with a very large bag of flour. A few months ago, my 21-year old son Emmett and his friend Tucker needed a kitchen to make some bagels for a potential business venture they were considering. Although Emmett has his own apartment, he doesn't cook there–too many cockroaches. (At one point or another, most of us have lived in such a dwelling. It’s a young bohemian’s rite of passage.) They asked to use my kitchen and I, being the proud and supportive mom of…