I have 2 daughters, 5 & 8 (Yr 1 & 4) my youngest's behaviour is getting intolerable. She is an angel at school and for everyone but my partner and I. Whenever we are about to do anything she puts in a list of her requirements and if it doesn't go her way has a massive tantrum. She will not back down, we've given up with the naughty step and now physically put her in her room until she calms down (this is getting harder as she gets bigger). If we can reason with her we 'compromise' on some of her demands and then she just adds a whole load more. It's a nightmare.
My older daughter is suffering as she ends up giving in to her sisters demands to keep the piece and our family time is often ruined by her tantrums. Taking away treats or putting her to bed etc doesn't work, she doesn't seem to care.
Any ideas?