We've lived in Purcellvile for 17 years and rarely go to Mosby's. We decided to give it a shot tonight and try it. We were reminded why we never go. They had a buy one get one free burger special (BOGO burgers), which was a good deal, but the bartender/waitress didn't seem to be interested in serving. Maybe because the place was COMPLETELY EMPTY except for us and one other table, so whats the rush, right? She didn't provide water, (I guess that's extra) and came twice, to deliver the beer and to deliver the food. I had to track her down to get the check. Burgers were average but the atmosphere was so awful we had to get out ASAP. Never again.