I think he knew what was coming, that's how the man was invited. He was following the rules, though. The "rules" are being used by the tyrants against liberty and truth.
I like the Brits allowing the back-seaters to hoot, holler, and generally raise hell when they disagree, or agree, with testimony, speakers, or their plans. Not that they get any better legislation, it just seems the right way to go in showing approval, or disapproval.