Find something that needs breaking (ie a concrete slab that needs to go for a landscaping project), get a sledge hammer and smash the crap out've whatever it is. A little mindless destruction does wonders.
I don't often get that angry these days as I like the majority of my current situation, but when I do get angry I do need to take it out on something (or someone if a vandal/thug has the misfortune of crossing me while I'm seething). I do pick my target though as blind rage is never a good thing.
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