The BBC has a contest to vote for the Ten most embarrassing political moments. Funny enough they don't have the my favorite, the projectile vomitting incident involving George Bush senior and Kiichi Miyazawa of Japan.

When Mr Bush's father attended a state visit in Japan in January 1992, he responded to the arrival of Japanese beef steak (French-style) with a projectile vomit into the lap of Prime Minister Kiichi Miyazawa.

Suffering from flu at the time, George Bush Senior then slumped under the table before getting up a few minutes later and announcing he felt great. 

Too bad there isn't an option for a write-in vote.