an Ugly truth

no...this post is not about any movies (which happened to have the same title), this posting is about reality...things that we thought so faaaarrr away but apparently very to close to us.

we all in some point of time, experiencing anger right? afterall we are a human being with emotions. I just want to know the following : How can you be so sure when you are mad, you are not hurting those people that you love so dearly? how to release an emotion in a good manner (if there is such a good manner when you are angry) ? how can you be sure you're not regreting anything when it already subdue? how to vent your anger without jeopardizing anything?
coz I don't know the answer....in lots of case when i angry ...i hurt people not physically more to mentally (word is my weapon...a strong and killer word if i may add), so i don't see the damage, and when the anger is gone i can easily appologize and behave like nothing happened coz whatever the consequences its just not visible.

but how in the case of those people who when they are mad, they go physical.
the damage is there...visible from any angle you want it, how those people feel when the anger is gone only to found out they left bruises, visible mark.
do appologize is enough? is "i'm sorry it won't happened again" will erase all? where is the guarantee that it really not going to happen again, where is the limit

I thought physical violence or maybe domestic violence is a very far in the horizon, i mean i used to read it on the newspaper or watching it on the news, but lets thinking it this way, everyone is with emotion and you just never know when it will vent to anger that lead to physical....you never know..
that is why i think it's best to start learn from now on, to control the emotion and if anger come, to vent it in a good manner (please someone teach me about this coz i don't want to hurt anybody mentally anymore and most of all physically)

ps. i'm in the edge of crying as I saw someone that I care got a purple eye just because someone that so dearly to her can't control the emotion