The Slow Food movement notwithstanding, fine food and instant gratification are not mutually exclusive. Exhibit A: sushi. Exhibit A-plus: Kyodai Rotating Sushi Bar, one of many Japanese restaurants in Towson, but by far the most fun. Kyodai is novel in several ways---including its dark, brick-lined, Asian-steakhouse décor---but the real innovation, a first for the Baltimore area, is the...