My experience is not with Govt Offoces, rather the people at the shops or I meet on the streets . I find in Qatar , Arab speaking nationals (non Qatar nationals)always behave little rudely . Many I time i feel this may be the reason they do not grow up in the business field.May be they have the feeling that they speak arabic and so they are superior than the non arabic speaking expats . To be very frank I don t like many of thes people bvecuase of this attitude ..