I used to shout until I realised I didn't sign up to be a shouting person just because I have a child. So I stopped shouting and now I whisper. And it works.
I involve my DD in the process by quietly saying - DD let us try and be early today, help me out here in getting you ready - by and large it works.
If she dawdles, I say, you need to wear your uniform for school, I'm concerned your pyjamas won't be warm enough, as they're bed clothes, and I want you to put your uniform on. Let me help you put it on now.
Even though she's only 4, she's good company, and I value our relationship. I don't shout at anyone else in my life so why would I shout at my lovely DD?
Reading this thread, I am really shocked at the attitude to deafness here - if your DCs couldn't see properly would you be so awful about that disability. Would you call them a blind moron?
I've been deaf in one ear since I had an ear infection at university, and I do understand how frustrating it is for someone to have to repeat things, (my DH is a saint ) but I suggest you all get your children's hearing checked before you come out with anymore anti deaf hatred.
Deaf people are not morons, as someone here posted - they're just deaf - and maybe your children are deaf too.
Research shows that eating and drinking a lot of dairy products can cause the Eustachian tube in a child's ears to fill up with liquid, rendering them deaf, so maybe ease off on the dairy products for a while to see if that makes a difference.
And please no more of the anti deaf hatred posts. I know it's frustrating to have to repeat yourself, but there could be a good reason for your child's behaviour, and there is no excuse for this blatant exhibition of hatred for quite a significant proportion of the population.