How Shiro hasn't noticed what his "warmblood ass" is capable of this month is anyone's guess. He's probably just been distracted with punching his problems in the face. Or something.

But right now?

Right now he super notices something is going on.

"Lance!" It's a yelp and a shout and suddenly he's running over and trying to slap the melting metal into the beam with his own metal hand. Just to try and keep it from spilling over the floor and starting a fire.