The term "bully pulpit" stems from President Theodore Roosevelt's reference to the White House as a "bully pulpit," meaning a terrific platform from which to persuasively advocate an agenda. Roosevelt often used the word "bully" as an adjective meaning superb/wonderful. The Bully Pulpit features news, reasoned discourse, opinion and some humor.
According to this article, the standard tip at a restaurant is 15% - 20% on the pre-tax total. I always tipped based on the post-tax total. Personally, I believe we should go back to 10% on the post-tax total... If 10% is good enough for God, then 10% should be good enough for a waiter or waitress. :-)