Bob Saget is not afraid of controversy. "I know parents always say 'think before you speak,' " he said. "Well, I take that step out and then do my stand-up," said the comedian and former Full House star. Saget is bringing his form of comedy to the Crest Theatre on Friday. "My mom used to say, 'Don't talk like that, Bobby' and it made me want to do my stand-up more. But now she thinks my stuff is funny so I kind of want to go and do something clean-cut." Saget said he will be taking it easier onstage at the Crest, but that it's not because of his mother. He hurt his knee recently during an impromptu performance on Broadway after friend and former Full House co-star John Stamos brought h