My dd is 8 and ds 4. When they get on they're great, but when they don't - which is most of the time 
- they bicker, fight, argue. OR they are really silly and run and scream rpund the house being bonkers and dissolving into silly giggles - which I also hate.
Does anyone have any magic tips for dealing with this???? We tend to give them warnings then send them to their separate bedrooms but that doesn't stop them. After a horrible breakfast today we have told dd that she's not going to her bf's party this weekend and ds is not having his play date on Weds if they don't behave. Is this fair??
Sooo fed up shouting at them/telling them off and not being able to have a conversation without them being insane/fighting together.
Help please!