Learn some arabic and it will help you tell the difference....when folk claim to be Qatari...
In my last apartment building a woman in abaya opened her car door and threw her trash at the entrance...
I picked it up and handed it back to her...
she started shouting she was Qatari in poor English..
I heard her speak in Arabic and said no she wasn't she was Egyptian and took her number plate...
scared the hebee jeebies out of her and she sped off

daft moo...
nothing wrong asking for id... ask for it - if they dont show -YOU should start calling the police...