Muthathar al Zaidi, an Iraqi journalist, threw both of his shoes at George W Bush as he completed his prepared remarks congratulating himself on the "Surge"™

Dogs, as well as shoes, are among the worst insults in Iraqi culture, of course.

From Erdla, in comments:

First Shoe:

This is the gift from the Irakis this is the farewell kiss you dog.

Second Shoe:

This is from the widows, the orphans and those killed in Irak.