I've only ever taken my dog on day hikes, and I'd like to start doing some weekend hikes with her this year. I tarp/bivy, and I'm concerned about my dog wandering off in the night, as she's far too curious/independent for her own good. I know some people do tents with their dogs, but I'd prefer to avoid that for several reasons (including condensation and nails on the tent's floor. Do any of you have similar problems, and how do you deal with them? Do you keep your dog leashed at night? If so, what do you attach the leash to? A tree? This seems problematic. But I can't be the only hiker with an independent dog, right? Right? Help me out, guys.