Leo or you could uss his nickname Maradona is 15 year old kid, he has quick temper, he doesn't like when he was given orders to do. Most of his time he spends in his room playing video games or smoking in the kitchen. 

His brother knows that he is smoking, but he lets him smoke around him. He smokes for the last 8 months. Leo smokes a lot, from 5 to 9 cigarettes a day.

 Most of the time he sees himself as the boss. If you don't agree with him on his opinion, thing will get dirty. 