Well, you already know my opinion on profanity's role in arguments. Which is pretty well in line with The 2% Co's. For everything else, I finally found the TV Trope that fits. Overall, I like saving the really big profanity for emphasis.
IRL, I'm a little loose with "dammit," but I'm pretty well reserved otherwise. I like it in comedy when something knocks everyone speechless except for the prim and proper guy, who suddenly drops an F-bomb.
And of course, one thing I'd like to do sometime is, with a group who knows me for being quiet and speaking mild, proper English is drop a cluster F-bomb on some truly deserving jerk. One handicap is that I'm not terribly creative with extended curses. If life was more like TV, I could just angrily shout, spray spittle, and release a looooong high-pitched tone.
So, any favorite Precision F-Strikes?