When I first met SC I was convinced the right thing for me to do was leave all telling off to my DH. I am not their parent after all. Unless they were going to hurt each other or it affected me I just left it.
I have since had my own DC and there have been a couple of occasions where I have told them off where my DC is being affected. Breaking toys, trying to feed her food we don't want her to have. Is this the wrong thing to do? They look at me so surprised and I can almost feel the oldest one about to tell me I'm not her mother any moment! I'm not sure what to do, it seems a bit much to call their dad from the other room to tell him to tell them off! I think I'm overthinking it but would like to know what you think. I'm too worried about being the evil stepmum but I am protective of my own child.