I think it was rude of the other person to insist
they go to the birthday girl. Although, being contrary as I am sometimes, if I were Sally that would actually strengthen my resolve to keep them for myself. If I were Sally at first I would probably be thinking, "Hmm, I wonder if I should give at least one of these to Birthday Girl, after all, it was the occasion of her birthday that brought us all in here..." But then when someone demanded
I give them away, that would tip me over towards keeping them. I guess that's not a very mature motivation on my part.
But I guess my point is that the "insister" actually cost
Birthday Girl a gift (in my head), because I would have been thinking seriously about giving one to BG of my own accord and with no pressure, just because I wanted to. But I don't like being told
to give my stuff to other people.