The CIA (NY) has a policy of adding a 15% service charge to the bill. It notes on the menu that the service charge is not mandatory and that the funds go to fund student attivities. It also notes that "tips in excess of the 15% will go directly to the students serving you". My question is how much additional should you give for reasonalble service. Are they expecting a full tip in addition or just some increment?
As a side note we ate at and enjoyed two of their restaurants last week (Excoffier and Amercian Bounty).