David Buckner is a adjunct assistant professor of psychology and education at the Teachers' College of Columbia University, and the president of Bottom Line Training & Consulting. He is also a regular guest on Glenn Beck's news and commentary program for Fox News.Columbia University: Faculty Profile: Buckner

He was appearing on Beck's April 13, 2009 program in a live segment when he suddenly became ill and passed out.YouTube: David Buckner faints on Glenn Beck's show (Time: 0.59)

Buckner was helping explain business issues, when he leaned over and whispered to Beck that he was about to pass out. Beck didn't respond right away and Buckner said again, louder, "I'm going to pass out." Beck asked him if he wanted a chair, but Buckner said again, "I'm going to pass out."

Beck then reached over and took his hand—and Buckner fell to floor, slowed by Beck's taking his hand. "We'll be back in just a second" and the show cut to commercial. When Beck returned after commercial break, he said that Buckner was fine.YouTube: David Buckner faints on Glenn Beck's show (Time: 0.59)

1. Teachers College: Faculty Profile: Buckner

2. Linked In: David Buckner

3. Post Chronicle: Glenn Beck Guest David Buckner Passes Out During Stock Talk (April 13, 2009)

4. Fox News: Is Your State Readying a Tax Day Surprise? (April 10, 2009)

5. News Corpse: Glenn Beck Gives Guest The Vapors (April 13, 2009)

6. CMOE: Mini-MBA Program

7. YouTube: David Buckner faints on Glenn Beck's show (Time: 0.59)