I was reminded earlier today that standards are different depending on location. Here in NJ, it's ridiculously common for even little old ladies to drop the f-bomb casually; nobody even bats an eye. I heard this in line today (Sunday!) at the local deli: "You guys make a great fucking sandwich!" She was AT LEAST 70.
Down South, where I grew up, I've heard guys in their 20s say things like "h-e double hockey sticks" because they couldn't bring themselves to say the word "hell". Go figure.