Donald Trump, the master of the insult, is sensitive about size, particularly of his hands. He has called Bernie Sanders a commie and Hillary Clinton crooked. I think that the Democratic nominee should be prepared to respond in kind. Bully Trump may be able to dish out insults but probably is not prepared to receive them. I suggest that a reference to his small hands or to respond, Mr. Trump, that is mighty small of you, might force a truce with him on name calling.