"Hey, I don't just 'wander through time'," Rei said, though he wasn't as aggressive as before. This wasn't about being defensive, this was just stating facts. "I guard it. I'm a Guardian of Time, not just some tourist bopping around the time stream."

Rei could tell the Doctor didn't really want to continue the conversation, and really, he didn't either. It only served to remind him that, in his universe, the Doctor would not be welcomed. And killing time travelers, or sabotaging their machines, was not something Rei liked to do. It was a part of his job, nothing more.

He stopped spinning the watch around, suddenly conscious of how much he'd been playing with it. Kanika had always warned him to stop doing that, since it was a dead give away that he was feeling nervous or scared. "What, this? It's..." he didn't really want to have to explain what it was. "It's just a watch. Old family heirloom." Well, that was about half-truth.