What's you favorite swear word?

After all the trouble I've been having building a new web server the last couple of weeks, I felt this was really appropriate.
I've not only revisited my favorite swear words several times, but I've also invented new ones.
My favorite by the way is Bollocks! However, people look at me funny when I use it, so I go with the old american F**k! when I feel the need.

It's incredibly NOT SAFE FOR WORK, so if you're at work, or in a public place like a library, or have small children or animals nearby you should probably avoid clicking on the video.