Bruce Buschel has compiled a list of 100 things restaurant staffers should never do. I've supplemented this with a list of my own geared to Indian restaurants. Please add your own pet peeves.
drag furniture across hard floors while setting tables if some guests are already seated.
form chatting huddles at the counter or in corners.
proffer plastic bottles of water for temperature checks.
watch the cricket match on TV instead of attending to guests.
crouch, or place a hand on a chair and lean down to speak.
automatically suggest the most expensive item on the menu when asked for recommendations.
presume guests will order a particular dish because they have done so the last dozen times they visited.
insist on helping guests place napkins on their lap after they indicate they are capable of doing it themselves.
be stingy with menus by having two guests share a card and then snatching it away at the first opportunity.
place the bill before the male rather than at a neutral spot after a couple finishes dining.
Serve red wine warm (room temperature in Bombay is rather higher than room temperature in Bordeaux).