Seems like you wasn't in the mood for idle chit chat. I think we all been there. But, I would rather have someone do what ol boy did to you while ringing up my shit than to have these same conversations with other people while waiting 3+ deep in line. I am sure he meant no harm, but then again, I don't know what his reasoning for taking to you like he did. Maybe next time, there will be another cashier who will not chit chat. Just hope this person will be courteous and respectful.