Like everyone else, I have been chuckling endlessly about Romney gaffes in London. He criticized the London Olympic committee for screwing up the security. He said "the nation of Great Britain." Andrew Sullivan has a recap of the reactions. 

Romney, for a moment, forgot that he was on a campaign trail. He flashed back to his proudest moment as the head of the Olympic committee for the Salt Lake games. As he strolled through the city with his wife, he was most certainly thinking that he could do better. Instead of doing what politicians on a campaign trail are supposed to do – kiss babies, make yummy sounds over terrible food, say bland forgettable statements – he said what he was actually thinking. 

His overbearing Master of the Universe personality is just below the surface, and it's just fun when it sneaks out for us to see.