What happened to Rick Perry in last night's debate is a speaker's nightmare - a brain freeze followed by 43 agonizing stammering seconds.
If this gaffe brings him down, it won't be because he forgot the name of the Department of Energy. It will be because of his response.
Rather than moving on with confidence and ease, Perry suffered - and the audience suffered with him.
From the Green Room: Face it - You will mess up. What matters is how you bounce back. Never suffer. Emotions are contagious and your audience will suffer as well. Keep your confidence. Keep your cool. And move on.