It's a popular misconception that when someone who is angry and blows off steam, they rid themselves of anger.
When you express anger, your are reliving what made you angry, and then continue to still be angry.
I once took a lady out to a Chinese restaurant and when she got her fortune cookie, there was no saying in the cookie. She said that was her type of luck.
How about pessimistic Peter or complaining Charlie.
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"It doesn't cost "nuttin", to be nice". 
MOM
I just want to do the right thing! Uncle Joe, (my hero).