At every stage in his college basketball career, Braden Smith has heard the doubters. That's not any different this week, as the former Purdue guard pursues his dream of playing in the NBA at the scouting combine. Proving people wrong is one of Smith's favorite hobbies on the basketball court. Tuesday, Smith finished his first scrimmage at the NBA Scouting Combine with eight points, four rebounds and three assists, though he had a much better day passing the basketball than his numbers would suggest. Performing in this type of environment might be chaotic and challenging for many players, but Smith said he feels relaxed this week in Chicago. In fact, he doesn't feel much pressure at all. "I think this has been the least stressful out of my last five years for me," Smith told Brian Neubert of GoldandBlack.com . "I know that's kinda crazy. Like, you don't know where you're gonna be in the next month, you could be wherever.…