Last Monday my wife and I had lunch at the Nine Dragons restaurant in Epcot. We are DVC members and currently are entitled to a 20% discount on lunch as a members perk. When the waiter brought the bill, we presented our Key to the World card and pointed out where it says DCV member. When he came back for the signature he told us the tip has already been taken care of. Sure enough, printed on the receipt was an 18% charge for a tip along with the 20% discount. I was so surprised that I didnt say anything but have thought about it since. Shouldnt a party of 2 have the option of determining how much a tip to leave? Has this happened to others at the Nine Dragons or elsewhere at WDW?