Noah and his best friend Carlos are walking to the lunchroom when the school bully, John, approaches Carlos and asks him for his homework. Carlos replies he doesn't have it, and John gets mad and threatens him to beat him up. Everyone in the hallway stops to see what is happening, but no one wants to get in Carlos's way. Noah finally walks up to Carlos and states. "Leave my friend alone. He hasn't done anything to you." What type of person is Noah?