My dd is 6 and has always been relatively challenging. Lots of tantrums, biting and mood swings. However she is a delight in school and has really calmed in the last year. She has the odd strop when she's just in from school - tired and hungry and worn out from trying to be good I suppose. However every Saturday she goes into rages and falls out with everyone in the family. She plays sports she says she enjoys but prior to going and in between becomes so angry. She has two clubs - one at 9 for an hour and one at 11:30. She has plenty of snacks etc. We are at our wits ends. Is this normal? She seems ok on Sundays. We've tried keeping her home from a club as punishment but it has no impact. Any ideas? Thank you