I'm more than capable of suppressing my rage but if something puts me over the top, then yeah, I'm gonna do something stupid, albeit therapeutic. I only like to do it when I'm alone though, so as not to scare the crap out of anyone, much less do or say something to them I'll regret. As someone has said though, it's a very costly way to do things.
For example, there was one night when I went to a friend's house to tutor her. She had a rough night though and wound up filling me in on all this shit that had been done to her before I'd met her and how depressed she was (not that I didn't know she was depressed, but the severity of her depression caught me off guard). Skipping the details, I remember walking back to the car when I was finished, constantly telling myself that I was sick of humanity. Then I just sat in the car for a good 15-20 minutes until I exploded; dropping F-bombs, screaming and throwing punches at whatever I could land one on. When I'd finally finished, I looked up and found that I'd put a giant spiderweb-shaped crack in the windshield.