My 4.5-year-old ignores me a lot and talks back quite frequently (particularly when he's tired and hungry.) I try time outs, but they have very little effect. I threaten to take away TV shows, which he gets in limited number and which he loves, but that's not an automatic consequence and I know at this age that's important. What is everyone else doing? I spend most of the day feeling like I am talking to a brick wall. I would expect this behavior from a tween, I had no idea the sauciness could start so early!