A man gets sent to kill Hitler with a time machine.
He enters inside the machine, gets cheered by his colleagues. Since the mission is very dangerous, he’s gonna be a national hero!
The machine starts, he sees dark for a bit and there it is, in front of Adolf Hitler’s room. He opens the door and sees a young man ready to participate in ww1.
The time traveler knows that he has a few times before being sent back ( or forward) to the future. He takes a long breath, enters the room, takes his gun, and shoots the young man in the head four times, steals something to simulate a mugging, and gets sent back.
He happily runs to his colleagues and says: “I did it, I killed Adolf Hitler!”
A colleague says perplexed: “Why the fuck did you used the time machine and who the fuck is Hitler?”