I don't know about your daughter being furious OP, I think in your shoes I would be furious with her for being so ridiculous!! What on earth does it matter that you took in a gift for the staff, after interacting with them over your grandchild for all that time? Your daughter has absolutely no right to be angry, and even though she has just had a new baby, there is no excuse for blowing up at her own mum for something so stupid. I'd be giving her a lot of space, and wouldn't bother making contact until she apologised, although I know you may feel that this is cutting off your nose to spite your face, as it would obviously stop you having contact with the children. Sorry, I'm just SO mad that she thought that this behaviour was OK, but this generation seem to think that they're the only ones who can possibly be right about anything, and really are VERY entitled.