When there is nothing left to say is usually when I say the most. I guess it's because I feel uncomfortable with the way the conversation ended. Or the look in the other persons eyes. I have been known to make a joke at the worst time possible, but really I just want to cry and walk away in silence. I wonder why I can't just shut-up and stand in silence. I guess I think I am always going to say something great that will change their mindset.
But alas I just look like a giant ass.