As a character, Sammy is well rounded. He's quite observant, has a great eye for detail. He is witty, sarcastic, sometimes caustic yet funny, and ultimately capable of empathy. He's also more than a little cynical (sour jobs do that to a person). He's probably somewhat stubborn, has a mean streak, has inherited some of the chauvinistic attitudes of his male dominated society. He says and does foolish things. In other words, he's a complex, typical late adolescent boy. Is he a dynamic character? Yes. I sense a real change in him from beginning to end. At the beginning, he's a cynic. A critic. Full of sarcasm and attitude. A passive observer. A complainer. By the end he is much more sympathetic and active. I think he realizes in that few minutes