The second example you provided would have had the same effect without using the f-word. "John, you were a real douche with Bob back there, and you gotta apologize, or I’ll kick you in the nuts myself”
Doug's right, it should be avoided. Can only harm, never help.
I'm giving a vote for "Outside the Valley". At Gnomedex this weekend, everybody I met was from the west coast. I live in Arkansas for example, and loved meeting the few people and hearing about what they did that lived semi-close to me. Can't wait to see what you produce, I'm sure it'll be good whatever it is.