[Well, David hadn't been expecting that. He looks up when the shelter forms, looks back at the stranger, and then is immediately moving forward to grab the man. Don't fall.]

I'm guessing no one ever taught you not to push the upper bounds of projections without figuring out your stamina levels. Come on, lay down. Close to the wall if you can. These sorts of constructs can benefit from having their creator nearby.

[He had a chiding voice like he didn't think the man would properly take care of himself. Which was, of course, because David didn't think the man would properly take care of himself. And maybe he was a little jealous.]

I can barely make a dome over myself and you're doing this. Madness. This isn't a time to test new things.