[The gesture catches him off-guard, and he automatically jerks his head away from it, but has the good grace to look somewhat ashamed afterward.]

It's not you. I believed - believe you. Just not used to that kinda thing. [He's smoothing his hair back into place now, for something to do while he gathers his thoughts. God, he's jittery. This has gotten to him worse than he thought.

Eventually, his own smile comes back.]

So what's an acceptable risk? Your biggest. I got a hell of an answer last time I asked someone this, but she's only ten or something, so not the stiffest competition.