do the hard miles when they are young, don't treat bad behaviour as Degsy says fora short term quick fix, it is storing problems for when they are older and better able to construct and argument back. My daughter is same age as next door's daughter, we were a bit mean to my daughter when she was young, pretty strict, but now she's a great kid, really mature and sensible at 13. The girl next door rules the house and is a nightmare.(her) Action and (your) Re-action, mate.
If you eventually give in, or concede some ground it proves that tantrums work.
Boundaries and consequences.
For historical reference only and not that I condone that sort of thing at all...
but back in the day you used to get told if you keep on screaming for nothing you'll get something to scream for...usually involving a couple of slaps around the back of the legs ?
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