Oh yes... I remember going through this with my son, and I'm sure I'll be going through it again with my daughter! At this point, (and I could be totally wrong) I think it's probably a control issue for your daughter. She knows what's going to happen when she asks for something, and she knows what will happen when she refuses it. Maybe next time she asks for something like milk, you can offer some choices like, "Do you want your milk in this cup or that cup?" "Are you going to drink your milk here or there?" Make the choices something YOU want to happen, but let her feel like she has control by giving her choices. If she doesn't make a choice in 15 seconds, nicely inform her that you'll decide for her, "If you're not sure, I'll decide for you." If she tries to insert her own options, let her know that that isn't an option and repeat the two choices you gave, "That's not one of the options right now. You can choose this cup or that cup."I love doing this with my son. When he doesn't want to leave somewhere (like his grandparents' house), I ask "Do you want to leave in 5 minutes or 10 minutes?" Even though he doesn't even want to leave, he'll pick a time (it's always 10 minutes lol) and we leave right at 10 minutes. Works wonderfully!Good luck!