Since we usually interview a family at least a couple months before they start care I always just plead ignorance if called out about something later - as in I just assume things (whatever is in my favour). By that even if a parent tells me their 10 month old doesn't use a cup, needs a bottle to fall asleep, etc. I just "assume" when they start that they have progressed to where they should be and don't ask. If I don't ask, parents don't usually tell just assuming I remember from the interview. Milk goes into a cup and they take as much as they can. I will hold for a bottle till they have been with me for a month or so by putting everyone else down and then holding the child to drink then into bed. Mom just assumes one thing, I do what I feel is in the best interest of the child and everyone is happy. Then when mom says 6 months or so down the road they think it is time to introduce a cup you just say oh really I just assume he was already trying to use one at home because he has been on a cup here and not the bottle for 4 months. Just assumed you brought the milk in the bottle out of convenience.