What is it about North-Easts, lilypopbottle? In Aberdeen these questions to anyone, not just children, would be
You like that, do you?
You've got a doggy at home, have you?
You liked that, did you?
with the stress on 'do', 'have' and 'did' respectively. I would expect the questions to be 'You like that, don't you?' etc.
When I think about it, in Glasgow you hear the questions the way you have put them, with the double negative.
So many of these examples get my goat too, particularly 'so' at the beginning of sentences, less and fewer used wrongly and 'hubby' (which my MIL used to refer to my DH but only once!).
I love this kind of thread!