We once had some guests in from New Zealand here in Richmond. They were staying in a very upscale hotel and would drink at the bar/cocktail lounge every night. They couldn't figure out why the service got downright hostile - the cocktail waitress slammed the glasses down on their table, the bartender glared at them and they were made to feel very unwelcome. The problem was they weren't tipping. You're supposed to tip pretty generously in bars and cocktail lounges (nice looking cocktail waitresses usually earn pretty good money!).