"hmm, well I'm glad to see that you are not all contemplating dashing off into the night in an unfamiliar forest." I look around to be sure everyone has gathered their belongings, such as they are and go through my own pack to find some blankets for those who may need them.
"We do not ask for assurances of safty or comfort, though it is thoughtful to warn us of the dangers we are sure to face. What we are concerned about now is our missing friend. Since you do not require much sleep, how about you and BG take the first watch together? I do not want anyone running off by themselves unless absolutely necessary. Let us then pick partners, if you agree with that bit of reasoning."