It's an easy way to show your gratitude for a job well done.
Per The Emily Post Institute, you should tip your waitperson anywhere from 15 to 20 percent of the pre-tax amount of your total bill for sit down service. If you're being served family or buffet-style, the Institute says a tip of 10 percent of the pre-tax bill will suffice.
Hank Siemers: Senators serve as jurors. If a potential juror were to predetermine their verdict, they would be excused. The Chief Justice presides over this trial. Any juror who has commented on their vote, pretrial, should be excluded. Keep in mind, the Constitution specifically states that removal from office I determined by 2/3 of the members PRESENT. From: Article 1, Section 3: 6: The Senate shall have the sole Power to try all Impeachments. When sitting for that Purpose, they shall be on Oath or Affirmation. When the President of the United States is tried, the Chief Justice shall preside: And no Person shall be convicted without the Concurrence of two thirds of the Members present.