If you ever see yourself coming out of a time machine, run. Run away as fast as you can. Don’t stop. Don’t try to talk. Nothing good can come of it. It’s rule number one, and it is drilled into you on the first day of training. It should be second nature, they tell you: Don’t be a smartass. Don’t try anything fancy. If you see yourself coming at you, don’t think, don’t talk, do do anything. Just run.