Oh my Heck. - If you live anywhere in Utah or Souther Idaho you've heard that one. Chesse and Rice - I actually had a platoon sargeant in the army that used that witicism. NIF - now I'm fooked. The thing with this is 99% of your readers are going to know exactly what your character meant anyway, when you use the word substitution for colorful english expletives. Unless your going to get it printed by a major comic label or your intended audience is under eighteen I'd probably just say "Oh Fuck" rather than Oh Fark. As You're best bet is to see if you can pick up some austrian slang that sounds good.