"Hm." X considers that, frowning off at something in the middle distance. "I don't know. I think even running for your life can be fun, if you have the right people running right next to you."

Also when you're running from the right people. And to the right places, for the right reasons. All of which, X has to admit, is something of a luxury when danger occurs randomly.

Suddenly, he looks sheepish. "Sorry," he says, glancing over with a faint smile. "I didn't mean to barge in without even introducing myself. I'm X."