Hephaestus was currently working on making armor using his power and was all covered in smoke dust. He was focused on shaping the metal but also kept an eye on you, as you his little spark kept wandering around and even peaking at his work. Every time you come closer to have a better look of fire, Hephaestus would gently nudge you away from fire. He would speak;

Ah! Little spark, no its not your thing to touch fire...

He would shoo you as if he was worried that you will jump in, how cute of him. You waddle around the house and his work place as usual