I look after a dc before and after pre school 3 days a week. He is very loud, screams a lot and generally disagrees with what everyone says even when he is blatantly wrong. He is also extremely poor at following instructions and completely ignores you when you ask him to do something to the point where you have to bend down and speak right in front of his face iyswim. He has nothing wrong with his hearing. As you can imagine, this is quite warring and I find myself feeling annoyed with him a lot. How would you approach this? Mum and Dad know but are very inconsistent. Dad is extremely harsh and Mum is very soft. Dc is 4 by the way.