"He's a friend of mine." Just. A blanket statement there to hopefully settle all the sudden tension she had accidentally caused with her words.

Katara glanced down at Linda's movement and sighed. Chill, Linda. It's okay. She hadn't beat up your trainer yet today, had she?

Instead, Katara sent a smirk in his direction. "He's just used up all the times I was ever going to help him do anything for the next year in one day, that's all."