In terms of the ugly baby episode, I think this is a situation where you must lie. A baby is a sensitive issue enough where not a singke parent wants to think that their child is ugly. The emotions and love attached to the baby are so strong that if any friend tells the parents it is ugly is a huge insult. Even if the parents recognize the fact that the baby is ugly, they find the cute aspects of the child and that is all that they want to see.
(צפיה בדעה במקור)