It seems an Australian man planted an axe in the roof of his friend's car as a 'practical joke'. Aside from the fact that I think all practical jokers should be strung up by the short and curlies, the victim of this prank decided that turnabout was fair play - so he got his own back in a magnificently malicious fashion! Let the video tell the tale.
Oh, yeah! Now that's what I call Revenge, with a capital 'R'!