I was sitting on the train today and a woman (30+) got on with her baby who cannot have been more than six months. She then opened a bottle of fizzy fanta orange, decanted into the baby's bottle and then fed it to her. To say I was would be an understatement. I have no idea whether Fanta is OK for babies, but it just felt wrong. I so wanted to say something, but didn't. WWYD?