What is the least practical martial art (for seld-defense purposes)?

[Vuk]

You tell me what you think (with your country in parenthesis beside it), and then I will put up a poll with all the answers for people to vote on. I am simply trying to gauge public perception. I have a good idea that I know what it will be (at least for the US), but I am curious as to know what others think.

EDIT: Oh, and please do not bash people for their opinion. It would be nice if this could be free from the discussion of the relative strengths and weakness of all martial arts (even the ones that suck, like Judo ).