Acting is all about relating to the people on stage with you, even in plays that break the fourth wall. Clowning, for the most part, is the opposite. If somebody in the audience sneezes, I can count on it: I don't even have to look at Shiner; he'll have his handkerchief out. It's all about all of us in the room together.
I was very young, and I remember this heated, passionate argument and trying to figure out some place called Vietnam, something called a Watergate, and some guy named Gerald Ford who my dad knew who had just become president, and how all these things fit together.