You are teleported in an alternate universe where time ran slower.
It is the 9th of April 1890. Baby Hitler is almost 1 year old and you are standing next to his crib. The people from the current universe are trying to bring you back. They will do so in 15 minutes.
Would you kill baby Hitler? Why? Why not?
Remember, it is an alternate universe, but that doesn't mean everything is exactly the same, this world's Adolf Hitler might not be the tyrant we know.