Here's a TRUE STORY.
Years ago, I was working as an intern on Capitol Hill for the House Science and Technology Committee.
I was asked to go over to a joint hearing with the House and the Senate on the Love Canal issues.
Halfway through, someone told me that I had to go out into the hearing room, and walk VERY quietly behind the senators and congressmen, and then sit down behind "Senator Foghorn", since he had a question.
So, I did it, and sat in a chair behind "Sen. Foghorn".
He then leaned back and very quietly asked me to tell him how to convert parts per billion of a chemical into parts per million of a chemical.
NO JOKE.
TRUE STORY.