Visited my friend in hospital yesterday, she'd had a difficult birth the day before, was very tired and emotional.
The woman in next bed had her husband and 3 older kids visiting (ages 2-10). They were very noisy, kids running riot, shrieking, shouting and peeking round curtains while my friend was trying to BF 
After an hour of this I went up to the dad and told him sharply to keep the noise down and get kids under control, said this is a hospital ward and other women are trying to rest/sleep. He responded that his kids are excited to meet their new baby sister but agreed to try and keep them quiet.
Half an hour later they were even louder, chasing up and down squealing. My friend was tearful as she wanted to rest and was upset by the racket. I collared the dad again and said the noise was unacceptable and if he couldn't keep his kids quiet he needed to take them off the ward. He muttered about it being 'visiting time' but took the kids out.
Was I BU? I feel a bit uneasy about it now but I remember the same thing happening when I'd just given birth (only being too sore and tired to do anything about it!) Would you have said anything?