oh, Da, I can always give you heaps of hints on places/persons to beat the hell out of them.. This is not a problem in qatar..
AussieChris, this is rather cultural. Start learning a new culture, that's it. But as for taxi, i agree with oryx. Anywhere in the world, if they think you are tourist, they try ot rip you off big time, not matter you are australian female or german man, or whever..