This is turning into a weird political movement. This idea of throwing shoes at people that you dont like. When George Bush got targeted by shoes, Iran loved it, and several official shoe throwing campaigns were organised :).
But i suppose now the shoe is on the other foot, President Ahmadinejad got shoes thrown at him as well. I quote:
An Iranian website, Urumiye News, reported that a shoe was hurled at the president as his convoy drove through a central square. Security guards waded into the crowds but failed to find the culprit.
Apparently, this has happened before.
However, Ahmadinejad has been on the receiving end of flying footwear before. A shoe was thrown at him during a students' demonstration at Tehran's Amir Kabir university in December 2006.
He is in august company, Israeli ambassadors, Chinese premiers, US Presidents, Iranian President. What is common between them? They all got free shoes :)