Sounds fake or, at the very least, exaggerated. Can't really see someone refusing to give a kid cake and ice cream at a party, I can see nothing being left over once they got back. Can't see her giving 80% of the gifts, can see her leaving with 1 of many and getting checked on it.
And technically, what happened in this situation, is theft. Once you gift someone with an item, it is no longer yours.