The Fresh Prince Project - S1-E1
Continuity mistake: When Will puts the last of his wall-shaking staples on the Malcolm X poster before the butler's interruption, the poster is almost perfectly flat. When Geoffrey walks to the poster, a bottom corner is noticeably raised. When Carlton walks to it, it's flat again, and raised when Will freaks out at the mirror. (00:07:40 - 00:10:00)
Answer: He believed he was asserting his independence and individuality, not giving in to the conformist rich society. Movie quote, "I don't act this way to change the world. I act this way, so the godamn world doesn't change me."