Donald Trump is walking out of the White House and heading for his limo, when a possible assassin steps forward and aims a gun at him. A Secret Service agent, new to the job, shouts "Mickey Mouse"
This startles the would be assassin and he is captured.
Later the Secret Service agent's supervisor takes him aside and asks him, "What the fvck made you shout - Mickey Mouse??"
Blushing, the agent replies, "I got nervous. I meant to shout, Donald, duck!!"