Richard Sherman's mother knows best when it comes to her son's supreme confidence, on display in full force at the end of Sunday's NFC title game. Beverly Sherman said he likely got some of those traits from her.But even she can't say what her son will do next as the Seattle Seahawks star defensive back enjoys the spotlight in the run-up to the Super Bowl. It's a spotlight that turned on him at the end of the NFC Championship game when he made a spectacular play to help seal the victory -- then taunted an opposing wide receiver and provided a lively post-game interview.Images: 2014 NFL Playoffs"I don't know what's going through my son's head when it comes to what he's going to say or do," said Beverly Sherman at her family's Southern California home. "He's a pretty smart kid. He knows the consequences of doing what he does and says."He's very confident, very strong-willed -- some of that he might have gotten from his mother. The apples don't fall far from the tree."As for the backlash regarding his comments?"It does hurt a little, but a lot of times he's misunderstood," she said.Sherman excelled on the field and in the classroom at Dominguez High...