@Lily pily - currently she is fine with it as he 'walks' away so she doesnt actually see it. However she is getting to the age where she is picking up on things more and will start to realise when he is on his way/about to have a 'tantrum'.
I.e with the popcorn machine she said where did dad go, then about 2 minutes later said i can hear stomping noises like this (then starts stomping herself) - so I know it wont be long before she begins to think that when you get mad you growl then stomp off etc.
But I agree she should never even have to wonder where he is/if he will be back (if its public) etc. or feel frightened towards him thats why I wanted to get some clarity on whether my thoughts that his anger needs controlling are correct - for all I know people might have gone oh thats normal I rage like that about 5times a day As I said I have no domestic violence concerns just general concerns that she will grow up to respond similarly and then I have concerns for my husbands general mental state.