[Logically, Trunks knows that. Just ghosts and emotions, and his life has never been simple.]

Those are the biggest reasons why we all have to be careful, yes. Rose Tyler right? She heads Torchwood 2.0, and is one of my closest friends here. I worked for her as a part-timer before ending up taking over my mother's company when she vanished.

Maybe you'll have better luck than the rest of us.