Nerve gets his name from his adrenaline addiction. He is probably on his way to ride that sled off the roof, or hook it to a squirrel. Long before the shelf had an elf, all the Gnomes would come in from the garden for the long winter. Never ones to bother, they would find little, out of the way spots to sit, and watch, and enjoy the vibe of holiday cheer. That's why these little guys look so natural and comfortable when you find that little, un-noticed spots for them to hang out.