President Barack Obama bends over so the son of a White House staff member can pat his head during a visit to the Oval Office May 8, 2009. (Photo by Pete Souza/White House)
So President Obama wandered into a bar in Boulder, Colo., and this Instagram happened.
President Barack Obama reacts as a child plays with Lego style building blocks during his visit at a classroom at Yeadon Regional Head Start Center in Yeadon, Pa., Tuesday, Nov. 8, 2011. (AP Photo/Charles Dharapak)
President Barack Obama greets people on the tarmac as he steps off of Air Force One as he arrives at at Buckley Air Force Base, Tuesday, April 24, 2012, in Aurora, Colo. (AP Photo/Carolyn Kaster)
U.S. President Barack Obama reacts as Joey Hudy of Phoenix, Arizona, launches a marshmallow from his Extreme Marshmallow Cannon in the State Dining Room of the White House during the second White House Science Fair in Washington February 7, 2012. The fair celebrates the achievements of student winners of a broad range of science, technology, engineering and math (STEM) competitions from across the country. （REUTERS/Kevin Lamarque）
A look at some hilarious highlights from Obama's presidency.