There are too many variables to be able to give an answer that would apply in every case, every time.
I do know that I grew up in an emotionally abusive environment, and if some member of my birth family were to speak to me in an ugly way nowadays, my husband would not remain silent. He wouldn't argue about it. He'd just ask that person to please leave our house, and he'd offer them some friendly advice about where they shouldn't let the door hit them on the way out. Whether or not I want to go meet a family member somewhere other than at our house, even knowing that they treat me that way, is up to me, but this house is a drama free zone. He's not going to tolerate anybody mistreating me in our house.
There are some situations in which someone *might* bite their lip and not say anything. That would be mostly in extreme circumstances, though, like someone having a serious mental health breakdown and there is a very real threat of violence. In that case, the best thing to do is call the proper authorities and let the experts handle it.
Of course, you might want to make allowances for your 95-year-old Grandpa who has Alzheimer's, or your Uncle Martin who has schizophrenia, who are shouting random obscenities, if they don't know what they're saying and can't help it. That's if you can tolerate being around that kind of behavior. Because of my own PTSD, sometimes I can, sometimes I can't.
So yes, a lot of different factors.
