Israel's ambassador to Sweden Ambassador Benny Dagan was hit by a shoe while giving an address to a gathering of students at Stockholm University. The shoe, one of several projectiles hurled at him, struck him in the leg. A book was also thrown at him.
When did it become ok to throw shoes at an invited speaker? Unfortunately, I think this is something that is only going to become more popular until there are serious consequences for the attackers.
More at http://news.yahoo.com/s/nm/20090205/od_uk_nm/oukoe_uk_israel_sweden.
Video embedded below. (From http://vinnyswebsite.com/blog1/video-shoe-thrown-at-israeli-ambassador-benny-dagan-in-sweden-youtube)
Past shoe throwing incidents (reverse chronological order):
Berman Post: Protester Throws Shoes at Mayor Carolyn Peterson
Berman Post: Protester Throws a Shoe at China's Prime Minister Wen Jiabao
Berman Post: President Bush Dodges Two Shoes