Ds has reached the age (just off 3rd birthday) when he is asking the same questions over and over again paying no attention to the answers. I try and be helpful and informative and enthusiastic and reasonable for the first 10-12 questions while slowly losing my patience but eventually I shriek at him like a fishwife. Of course, he then bursts into tears and I feel like a complete cow and Bad Mother. Any tips on dealing with this would be very welcome....