Another thing: have you noticed that many of the current wave of immigrants driving DC cabs like to roll down the road honking to see if anybody wants a cab? If you're as annoyed by it as I am try this in response: raise up your arm and wave to them... esp. if they have to do a u-turn to get over to you. Then if they bug you you can say, oh, I just thought you were honking hello, I don't need a cab. You might get cursed in Swahili or Urdu or whatever but it's well worth the laugh