Loss for Words

Too many times to count. Mostly when I have to do a presentation. I know what I want to say. I've practiced it several times. But the words just don't want to come out. Also in High School, I was rendered speechless by the antics of some of my classmates. They were, shall I say, the class goofs, and thus they tended to act up. Sometimes it was easy to ignore but others, there would be no words to describe how over the top that they were.