This is Doha... there is nothing that pisses me off more than

-Helllllo
-aosdgoqsuibdvgoaxszbnvasoidnb
-I think you have the wrong number...
- tooooooooooooooooooooooooooooooooo (the sound of a guy hanging up on your face)

So impolite... It seems like people have hard time to dial the right numbers... Miss calls?? lets not get started on those...