The Monday report by Shafaf.ir is a rare example of the Iranian media reporting a humiliation reportedly suffered by the president. The website is close to Ahmadinejad's opponents.
The website identified the man as a laid-off worker in a textile factory in the northern city of Sari, which the president was visiting.
It said that the shoes missed Ahmadinejad, and the man began to shout abuses at the government for his failure to receive his benefits.
Iran officially reports its unemployment rate at about 11 percent, but some experts say it is much higher.
In a separate development, Iran's spy chief said Sunday that a website the United States touts as a "virtual embassy" for Iran is really an "espionage trap."
Heydar Moslehi warned Iranians that the website was "a bait to lure them into an espionage trap," the Shargh daily reported. "Our people, in particular the young people, must be vigilant," the paper quoted him as telling reporters after a Cabinet meeting late Sunday.
He said that the US "virtual embassy" followed the same approach and objective as that of the "den of spies" — the term coined by Iranian officials for the former US Embassy in Tehran, which was closed after militant students stormed it in 1979 and took 52 Americans hostage.
Washington launched its outreach website on Dec. 6, describing it as a way for Americans and Iranians to communicate "openly and without fear" in the absence of official ties.
