"Huh. Never seen that happen before."

Sanji's tone isn't upset, or particularly surprised. Nope, it's just matter of fact, and very slightly awed as he stares at the pot on the stove. Not a lot can take him off guard in the kitchen anymore, not after so many years. But this was enough to make him stop and stare. It might have something to do with the fact that, less than thirty minutes after setting foot into the kitchen, you had managed to set fire to a pot of water. "Babe... how?"