Which may not be the worst idea... Consider:
I have a good friend, an independent, who for most of his adult life has voted purposefully for gridlock. In the 70's and 80's it wasn't such a bad strategy when you consider the results of many of Washington's more 'active' decisions.
Now, he votes for the wackiest candidate he an find. He figures that one side or the other will somehow attain the power to force policy, so he goes for the candidate furthest on the other side of their ideology, assuming that they will counterbalance their decisions in the next legislative cycle.
I suppose it's still voting for gridlock... just on a longer scale.