Heiji got as far as opening the cupboard before he turned to watch Sasuke blow his ball of flame into the air. Dude, you're a fire hazard.

"That's pretty unusual," said Heiji. "Expelling it from your mouth, I mean. Humans tend to focus on their hands, since that's how they interact with the world. Might also explain why it's harder for you to control it."

He lowered the heat on the pan; the flames sank slow to the burner. "Do you have any candles? Birthday candles would be good, if you got 'em." Unless of course Sasuke didn't have birthdays.