[He pulled his wand out of his back pocket, flicking it casually back at the door. It locked with an audible click]

There. Now no one will come in. And I'm sure we can find SOMEthing to entertain ourselves for an hour. [He grinned toothily, folding his hands behind his back as he leaned down until their eyes were level] Personally, I can think of one or two things on my own.