You recall watching that one weird special about time travel with Stephen Hawking. If you changed something in the past, he said a thing happened similar to feedback and the time travel wormhole would eat up the universe. Intense.
You close your eyes and wave your finger around and alight it on top of a random button. You look down. Random feature. You depress the button and as the room around you gets hazy you bid the professor goodbye.
You lose the sensation of ground beneath your feet and you float in black nothingness for a long time. "No!" you cry out. This is what I get for being a test mouse for some professor I don't even know that well! You think as you pull on your head, choking out a scream.