from what i learnt, anger is a 'machanism' that human normally use to hide their "hidden feelings" which could be the result of 'disappointment/fear etc".... so in this case, you should know what had caused you to be sad and had triggered the anger....

whenever small misunderstanding happens between you and your wife, you both need to find ways to solve the matter...dont keep the 'tiny anger' in your heart thinking that its not gonna cause any harm....these tiny tiny anger are the ones which will unite as one big explosion.......!

and finally whenever you are about to get angry, make sure you lock your hand phones in a drawer! good luck! :D