I think one thing that has been lost in this discussion is that you may start a cast and need to reposition to target fast moving fish. Knowing when you need to drop the cast or make other adjustments only comes with practice and feel in real-life situations. I think this applies most to boating situations where the "ground" is moving underneath you. Saying a cast should never hit your body from an instructional view is one thing but if you spend a good amount of time in a boat chasing fish it will happen. You can only hope to minimize the number of occurances and take appropriate steps to prevent a more serious event, such as wearing eyeware.