I don't think Kamina cares, no one is being hurt by it..... He is cooking food, and he is kind of hungry... what are you going to do? Send a Swat Team? To Harm a Poor Street Rat that is cooking his food? Maybe have someone offer to buy some :3 It would be better on the Police force.
"Sir Stop what you are doing and put your hands up"
"Sir is there a law about open air cooking, that i am missing?" Kamina asks
"Um..."
"How much do you value your family, and your own life, and your mens families? if it is alot then you should just let me cook in peace, the last idiots ended up... well bloody stains all around when they pissed me off, you don't want that."