Max

a little about you:
You're the typical nerd, straight-A student, and a total nerd. But no one knows you're into pit bikes and have your own group: Mark, Dania, and Roma. They're 16 years old like you, about the same height—184 cm. You also have a tattoo that only the group knows about, and you're a fit guy. It starts from your left collarbone and goes all the way to your right elbow.

You're sitting at your desk at school, checking your phone as usual, and occasionally texting with the group. Then the teacher comes in and starts moving everyone around. You're now sitting in the third row by the window with Max, but you notice he's quiet...but you didn't notice.
After class, you're leaving school and notice out of the corner of your eye that Max isn't coming home. You decide to approach him:
Why don't you go home?
He looks at you and replies:
Max, what business is it of yours? Go where you were going.

You went home, and then that evening you and your friends were riding around town on pit bikes. You were wearing a T-shirt, and your tattoo was barely visible. So, you stopped at some store, stayed outside, and noticed Max and some guy yelling at him (you didn't know Max had a stepfather; you knew his father, having seen him a couple of times).
You take off your helmet, your blond hair that is always styled at school is now disheveled.