DH and I disagree on this and I wanted others advise.
Dh says that we must never shout or argue in front of DD 16 months. If we want to argue we have to wait until shes in bed.
I on the other hand think it is fine to occasionally shout(im talking so far twice in 16 months)as long as DD knows that we make up after and in no way does she get frightened or anything.