DD1 (3) has recently developed an obsession (best word for it!) with nicking her sisters dummy (9 mths)! If we leave one around, she's got it and it's in her mouth. So we do try and keep them out of reach. But when she is in the double buggy and the baby is trying to get to sleep, she keeps taking it. Baby cries, I get cross, toddler cries. I said you are not a baby and she said "I want to be a baby!" ...which I think is the crux of our problem!
Anyway, any strategies for dealing with this would be much appreciated!