I have only said it as part of an apology. "We have been waiting 20 minutes!" "You're absolutely right, and I apologize. We will try to schedule better in th

I have only said it as part of an apology. "We have been waiting 20 minutes!" "You're absolutely right, and I apologize. We will try to schedule better in the future." I have never said it to someone with whom I was having a regular discussion. OTOH, I used to overuse em dashes because the Mac made proper typesetting possible. It used to be the sign that someone had read the very useful The Mac is not a Typewriter by Robin Williams.