"When the sun is out," Sokka repeats pointedly, smiling while Ai-Ling squints at the watch. "But what if it's raining? What if there's been a storm for days? What if you're here, or in the North, where during the winter seasons, the sun is only out for a few hours a day?

"But mostly," he grins at her as he sits down on the benches surrounding the communal fire, reaching for mugs of tea and chocolate both, "I wear it to annoy your mother-in-law."