Usually it's his boss who crosses the line, but during a visit to the Kennedy Space Center US Vice-President Mike Pence revealed that he has a rebellious streak as well. Pence, who was appointed as chairman of the National Space Council, doesn't seem that fussed about following Nasa's rules.
During a tour of the Center on Thursday 6 July, the vice-president chose to ignore a sign which said "Critical Space Flight Hardware - Do Not Touch" and defiantly placed his hand on the expensive equipment.
After defying the sign, Pence took to the stage to address Nasa staff. He promised them that under Donald Trump's leadership "America will lead in space once again".
"For nearly 25 years, our government's commitment seems to have not matched the spirit of the American people," he told space station workers inside the Vehicle Assembly Building where Nasa's Space Launch System rockets are assembled.
"But I'm here to tell you, that as we still enter this new century, we will beat back any disadvantage that our lack of attention has placed, and America will once again lead in space for the benefit and security of all of our people and all of the world," he promised. "Our nation will return to the moon, and we will put American boots on the face of Mars."
He promised that the Trump administration would ensure a "constant presence in low-Earth orbit" and would develop new policies to "carry human space exploration across our solar system".
"As the president has said, space is, in his words, the next great American frontier," he added.
While Pence was visiting to the space centre, President Donald Trump was delivering a speech in Poland about the threat "radical Islamic terrorism" and hostile regimes in the Middle East pose to Western civilisation.
All eyes are on Trump as he prepares to meet Russian President Vladimir Putin for the first time today at the G20 summit in Hamburg, Germany.