Champ Clark loves to tell of how in the heat of a debate Congressman Johnson of Indiana called an Illinois representative a jackass. The expression was unparliamentary, and in retraction Johnson said:
"While I withdraw the unfortunate word, Mr. Speaker, I must insist that the gentleman from Illinois is out of order."
"How am I out of order?" yelled the man from Illinois.
"Probably a veterinary surgeon could tell you," answered Johnson, and that was parliamentary enough to stay on the record.