Had doubts about your sitter from day one? Mother's intuition is usually right on the money. But since we don't suggest firing your sitter just based on a hunch, read on to learn the clues to watch for if you don't like the way things are going. Is your little one anxious around his nanny or babysitter? Is she frequently late to the job, with excuses a-plenty? Then it may be time to start the search for someone new.