maybe some don't think they're getting good service. there are countless discrimination suits filed against restaurants. even after the whole racism thing, some people just provide shitty service in general. long waits for food, being ignored for other tables. one time i went to a restaurant at 12 in the afternoon. there were 3 or four tables in the front lobby being used, but my boyfriend and i were seated in the back near the bathrooms. coulda been racism, homophobia, or both.