I worked at the 1986 PGA Championship at Cherry Hills. In a practice round he was playing with Charles. We were watching this group all day. On a hole late in the round Mac hit it to a couple of feet. Someone in the crowd yelled, "Let's see you do that left handed." He turns to Charles, borrows a club and proceeds to hit it closer to the pin. The crowd erupted. One of the first true memories of me being in awe on the golf course.
I was a standard bearer for all 4 days. Great experience for my 18 year old self.