As President of the United States, Donald Trump shakes a lot of hands. But look out. If you shake Trump’s hand, you might get pulled off your feet. That almost happened to Judge Neil Gorsuch after the President nominated him to the U.S. Supreme Court in late January. Since Trump took office on January 20, many world leaders, and even American politicians, have discovered they need to be ready for an unusual handshake from the U.S. president. Trump spent 19 seconds shaking the hand of Japanese Prime Minister Shinzo Abe in February. News media photographs showed the prime minister looking relieved when Trump finally let go of his hand. Days later, Trump shook hands with Canadian Prime Minister Justin Trudeau -- twice. Each time, Trudeau moved in close to Trump as if to prevent Trump from pulling him off balance. Trudeau also placed his left hand high on Trump’s shoulder, apparently to control the handshake. In March, Trump made news by not shaking hands with German Chancellor Angela Merkel. On video, Merkel could be heard saying to Trump “they want a handshake.” But Trump did not answer and did not offer his hand.