Tonight I was out for a rare dinner with a friend.
DH called during dinner because DD was vomiting and he felt I needed to come take care of her. I normally have all sounds off. I was in the middle of dinner and didn't see the message for about 30 minutes (unusual for me). My friend asked why he could not take care of his own daughter and encouraged me to pay our bill and finish our meal before responding (about 10 minutes more max).
When I got home DH gave me a bollocking for not having my ringer on. I told him that this generally works well and I would not have heard the ring anyway in the restaurant.
I normally check my phone obsessively. (For his part DH has a habit of leaving his phone in his jacket and becoming uncontactable for a long time).
AIBU to leave sounds off my phone?
NB: I have brought this up as a side point in a separate thread