The Iranians are terrible drivers - not vicious just a bad mix of curious and incredibly inkompetent. When riding the shoulder they would go in front of me and stop so I had to emergency brake or go around them on the busy road. When passing them, they would either open the door into me or start driving next to me pushing me further out on the road - and when I slowed down to get in behind them they would do the same leaving me "hanging". It happened hundreds of times per day and when I shouted at the guy in this car for hitting me, he followed me for 15k shouting obscenities out the window - not a surprise in this macho culture, so I took a picture of his license plate just in case...