I swear when I'm upset, exasperated, or whatever, which is constantly. I like to mix it up a bit--I might say, "Where the shit is Mark?" instead of "Where the fuck is Mark?" And, to indulge my love of multiculturalism, I might tell my girlfriend after a night of drinking: "Jesus, you look like 100 pounds of dehydrated shite." Which is a compliment, because there's no fucking way she's 100 lbs.