lol Kim it feels like heaps. We started it a few months before Jovie was born when Matilda was 2... doing it that way & it does pay off. BUT pick your battle or you will spend all day in there! We call it the "thinking spot" rather than the naughty chair but take your pick. The thing is to not talk too much, just say it and walk away and ignore the back chat etc... sometimes it may be them stomping or kicking the chair whatever, just ignore it. Atm Matilda screams "I don't like you anymore" and we ignore it. The more you talk, the more you get back.... deep breaths....

I'm pretty sure Triple P has some techniques on their website. If I find the link, I will PM you.