Not a lot offends me, period. I believe that people should be able to freely express themsleves in whatever way they deem fit for the occation, and that the consideration for others feelings shouldn't necessarilly be considiered.
This is based mostly on the belief that, as Carlin (the first who actually went (or was at least given credit to my knowledge) and compiled a list of "obscene" words), words are just words. It's the meaning you give to them that makes them otherwise.
I take it a step further, and say that since all of these "obscene" words are only "obscene" because of the connotation held by the person offended, that the offended person is acting irrationally. They are allowing this word to bother them, for no good reason.
That being said, I have had a long running open challenge. I personally refuse to accept that there is such a thing as swearing, until someone can provide me with a purely objective definition, without the use of connotation, of what swearing is, and why only specific words are considered swearing.
For example..... Why is "damn" considered to be a "swear word" while "darn" is considered perfectly acceptable in most social situations? Both are four letters long, only one letter is different in the spelling. Could it really be that that single letter is what makes the huge difference?
If you're motivated enough to go to the store to buy a motivation book, aren't you motivated enough to do that? So you don't need the book! Put it back, tell the clerk, "Fuck you, I'm motivated, I'm going home!" -- Geroge Carlin