Donald Trump

Donald Trump

Given his fixation with the U.S. president’s birthplace, it's no stretch to learn that Donald Trump suffers from other obsessive tendencies. The NBC reality-TV star and real-estate developer, who once claimed that, as an allegedly foreign-born citizen, President Barack Obama has perpetrated "one of the greatest scams in the history of politics, and in history, period," has OCD.

The condition manifests itself in a phobia of germs. He once distributed bottles of hand sanitizer to reporters at a news conference. Additionally, he refuses to touch elevator buttons and avoids shaking hands. He's especially palms-off with teachers, whose filthy desks are a veritable cesspool of "17,000 germs per square inch," he once said.

In the midst of Superstorm Sandy, Trump intensified his attacks on the president — this time questioning the legitimacy of the president's educational background. In a homemade video posted on his Facebook page, Trump said the third day of the storm's aftermath was a "very, very sad day," noting that Obama had failed to meet the noon deadline set by Trump for producing his college and passport application records in exchange for a $5 million charitable donation.

* Bing: Why is Donald Trump demanding $5 million for Bill Maher?