I'm firmly convinced that the ability to curse something awful in Chinese is an essential survival skill for living in China. (Probably true in
any country, even at home...) Among myriad other benefits, if you have the skills and tools to administer a verbal bleachin' when required, you're probably a little less likely to just go upside somebody haid.
Chinese slang, curses, and insults have been in books of varying quality for a long time, but it's not that hard to pick it up if you apply yourself. I also made up a number of new ones myself that, judging from the changes in skin tone they evoked, seem to have worked just fine.
But I HAVE seen the English version. I once had a copy of the brilliant
English As A Second F**king Language, but a student stole it.