DP and I have 9 month old twins, and he has a 6yr old from a previous relationship. She spends every other weekend with us and 2 nights during the week. We see her more during the hols. My problem is that she is very 'hands on' with the twins-constantly pulling at them if they are playing on the floor, or trying to shove a dummy in their mouth even if they don't want it. She has managed to tip their buggy a few times, trying to push them to sleep. My heart is in my mouth just about all the time when she is around them.I nearly passed out the other day when I came down from the bathroom to find her trying to pick DS up. DP had nipped out to the back garden for a ciggie. He doesn't seem to think it's an issue. I am becoming so stressed. Any advice?