You can drop by Mr. Wok without any notice and have a delicious Chinese food experience. Your stomach will be much better served, however, if you remember to call and make a reservation in advance — a move that grants access to more prized items on the menu. Call one day ahead to order Peking duck with skin so crisp it rivals kettle-cooked potato chips. And if you can firm up your dinner plans two days ahead, it's worth your time to order the beggars chicken. Wrapped up in dry, tough bread, the dish resembles a rugby ball more than dinner, but get a crack at what's inside that boule and you'll be forced to rethink the humble bird forever.