Redskins quarterback Donovan McNabb thinks it's hilarious that some people think he doesn't know the team's playbook. "That is hilarious to me. That is really funny to me," McNabb said Tuesday during his weekly appearance on ESPN980. "For everyone who may not have heard any of this, it's probably a shock to them." McNabb spent a majority of the interview trying to downplay the fallout from his benching in the final minutes of a loss to the Detroit Lions.