There are few things that look more painful than the figure-four leg lock. One way to make the move look more vicious, however, is to do it around the steel ring post. The figure-four around the ring post was used regularly by the legendary Bret 'The Hitman' Hart in the 1990's as a way to wear down his opponents legs and knees before he applied the deadly Sharpshooter. The move always looked liked it hurt and got a good reaction although it could be surprisingly dangerous: if the person taking the move doesn't hold onto the foot the person giving it, they will inevitably hit the back of their heads off the floor. https://www.youtube.com/watch?v=QKWyALTlJf8 We haven't seen the ring post figure-four much since Bret Hart retired although CM Punk, who regularly paid tribute to Bret in matches, did employ the move in his match against Randy Orton at WrestleMania XXVII.